/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:36:44,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:36:44,525 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:36:44,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:36:44,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:36:44,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:36:44,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:36:44,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:36:44,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:36:44,561 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:36:44,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:36:44,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:36:44,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:36:44,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:36:44,564 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:36:44,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:36:44,564 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:36:44,564 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:36:44,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:36:44,565 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:36:44,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:36:44,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:36:44,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:36:44,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:36:44,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:36:44,567 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:36:44,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:36:44,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:36:44,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:36:44,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:36:44,569 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:36:44,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:36:44,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:36:44,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:36:44,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:36:44,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:36:44,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:36:44,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:36:44,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:36:44,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:36:44,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:36:44,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:36:44,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:36:44,571 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:36:44,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:36:44,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:36:44,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:36:44,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:36:44,768 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:36:44,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2023-12-16 05:36:45,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:36:46,293 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:36:46,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2023-12-16 05:36:46,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8909f7ee/ef53f03739bc4d7fba0f2248338fe1a8/FLAGb5bf8362f [2023-12-16 05:36:46,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8909f7ee/ef53f03739bc4d7fba0f2248338fe1a8 [2023-12-16 05:36:46,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:36:46,380 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:36:46,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:36:46,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:36:46,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:36:46,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:36:46" (1/1) ... [2023-12-16 05:36:46,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e00fa90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:46, skipping insertion in model container [2023-12-16 05:36:46,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:36:46" (1/1) ... [2023-12-16 05:36:46,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:36:47,097 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_spec4_product18.cil.c[61907,61920] [2023-12-16 05:36:47,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:36:47,120 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:36:47,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2023-12-16 05:36:47,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1128] [2023-12-16 05:36:47,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1540] [2023-12-16 05:36:47,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1847] [2023-12-16 05:36:47,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1946] [2023-12-16 05:36:47,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2162] [2023-12-16 05:36:47,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2528] [2023-12-16 05:36:47,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2563] [2023-12-16 05:36:47,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2591] [2023-12-16 05:36:47,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2877] [2023-12-16 05:36:47,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2886] [2023-12-16 05:36:47,204 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_spec4_product18.cil.c[61907,61920] [2023-12-16 05:36:47,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:36:47,263 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:36:47,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47 WrapperNode [2023-12-16 05:36:47,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:36:47,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:36:47,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:36:47,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:36:47,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,375 INFO L138 Inliner]: procedures = 127, calls = 185, calls flagged for inlining = 58, calls inlined = 49, statements flattened = 883 [2023-12-16 05:36:47,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:36:47,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:36:47,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:36:47,376 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:36:47,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,454 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]. [2023-12-16 05:36:47,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,490 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:36:47,578 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:36:47,578 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:36:47,578 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:36:47,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (1/1) ... [2023-12-16 05:36:47,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:36:47,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:47,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 05:36:47,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 05:36:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 05:36:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 05:36:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 05:36:47,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 05:36:47,693 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 05:36:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 05:36:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 05:36:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 05:36:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 05:36:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 05:36:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 05:36:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 05:36:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 05:36:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 05:36:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 05:36:47,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 05:36:47,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 05:36:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 05:36:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:36:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 05:36:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 05:36:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 05:36:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 05:36:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 05:36:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 05:36:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 05:36:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 05:36:47,695 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 05:36:47,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 05:36:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 05:36:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 05:36:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 05:36:47,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:36:47,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:36:47,853 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:36:47,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:36:48,430 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:36:48,483 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:36:48,483 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:36:48,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:36:48 BoogieIcfgContainer [2023-12-16 05:36:48,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:36:48,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:36:48,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:36:48,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:36:48,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:36:46" (1/3) ... [2023-12-16 05:36:48,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2740b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:36:48, skipping insertion in model container [2023-12-16 05:36:48,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:47" (2/3) ... [2023-12-16 05:36:48,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2740b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:36:48, skipping insertion in model container [2023-12-16 05:36:48,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:36:48" (3/3) ... [2023-12-16 05:36:48,489 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2023-12-16 05:36:48,500 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:36:48,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:36:48,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:36:48,537 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;@3b022dfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:36:48,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:36:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 266 states, 207 states have (on average 1.608695652173913) internal successors, (333), 209 states have internal predecessors, (333), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-16 05:36:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 05:36:48,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:48,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-16 05:36:48,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:48,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:48,555 INFO L85 PathProgramCache]: Analyzing trace with hash -719261772, now seen corresponding path program 1 times [2023-12-16 05:36:48,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:48,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862869271] [2023-12-16 05:36:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:48,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:48,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:36:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:36:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 05:36:49,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:49,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862869271] [2023-12-16 05:36:49,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862869271] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:49,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804024884] [2023-12-16 05:36:49,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:49,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:49,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:49,148 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:49,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:36:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:36:49,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 05:36:49,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:49,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804024884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:49,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:49,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-16 05:36:49,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587198020] [2023-12-16 05:36:49,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:49,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:36:49,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:49,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:36:49,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:49,487 INFO L87 Difference]: Start difference. First operand has 266 states, 207 states have (on average 1.608695652173913) internal successors, (333), 209 states have internal predecessors, (333), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2023-12-16 05:36:49,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:49,546 INFO L93 Difference]: Finished difference Result 387 states and 589 transitions. [2023-12-16 05:36:49,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:36:49,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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 86 [2023-12-16 05:36:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:49,555 INFO L225 Difference]: With dead ends: 387 [2023-12-16 05:36:49,555 INFO L226 Difference]: Without dead ends: 263 [2023-12-16 05:36:49,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:49,560 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:49,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 396 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-12-16 05:36:49,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2023-12-16 05:36:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 205 states have (on average 1.5902439024390245) internal successors, (326), 206 states have internal predecessors, (326), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 05:36:49,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 405 transitions. [2023-12-16 05:36:49,599 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 405 transitions. Word has length 86 [2023-12-16 05:36:49,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:49,600 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 405 transitions. [2023-12-16 05:36:49,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 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) [2023-12-16 05:36:49,600 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 405 transitions. [2023-12-16 05:36:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 05:36:49,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:49,604 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-16 05:36:49,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:49,810 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 [2023-12-16 05:36:49,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:49,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1374810626, now seen corresponding path program 1 times [2023-12-16 05:36:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:49,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534715160] [2023-12-16 05:36:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:49,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:36:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:36:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:36:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,029 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-16 05:36:50,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534715160] [2023-12-16 05:36:50,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534715160] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596805631] [2023-12-16 05:36:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:50,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:50,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:50,033 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:50,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:36:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 05:36:50,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 05:36:50,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:50,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596805631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:50,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:50,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:36:50,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779651839] [2023-12-16 05:36:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:50,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:36:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:36:50,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:50,312 INFO L87 Difference]: Start difference. First operand 263 states and 405 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-16 05:36:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:50,349 INFO L93 Difference]: Finished difference Result 383 states and 576 transitions. [2023-12-16 05:36:50,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:36:50,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 87 [2023-12-16 05:36:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:50,352 INFO L225 Difference]: With dead ends: 383 [2023-12-16 05:36:50,352 INFO L226 Difference]: Without dead ends: 265 [2023-12-16 05:36:50,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:50,354 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 0 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:50,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 785 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-16 05:36:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2023-12-16 05:36:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 207 states have (on average 1.5845410628019323) internal successors, (328), 208 states have internal predecessors, (328), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-16 05:36:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 407 transitions. [2023-12-16 05:36:50,367 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 407 transitions. Word has length 87 [2023-12-16 05:36:50,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:50,367 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 407 transitions. [2023-12-16 05:36:50,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-16 05:36:50,368 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 407 transitions. [2023-12-16 05:36:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 05:36:50,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:50,371 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-16 05:36:50,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:50,577 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 [2023-12-16 05:36:50,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:50,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1537283285, now seen corresponding path program 1 times [2023-12-16 05:36:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:50,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100521224] [2023-12-16 05:36:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:50,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:36:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,733 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:36:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:50,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100521224] [2023-12-16 05:36:50,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100521224] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:50,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765968900] [2023-12-16 05:36:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:50,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:50,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:50,735 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) [2023-12-16 05:36:50,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:36:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:50,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:36:50,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 05:36:50,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:50,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765968900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:50,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:36:50,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458669432] [2023-12-16 05:36:50,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:50,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:36:50,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:50,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:36:50,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:50,974 INFO L87 Difference]: Start difference. First operand 265 states and 407 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-16 05:36:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:51,040 INFO L93 Difference]: Finished difference Result 560 states and 873 transitions. [2023-12-16 05:36:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:36:51,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 94 [2023-12-16 05:36:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:51,046 INFO L225 Difference]: With dead ends: 560 [2023-12-16 05:36:51,046 INFO L226 Difference]: Without dead ends: 317 [2023-12-16 05:36:51,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:51,051 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 102 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:51,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 751 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:51,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-12-16 05:36:51,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 312. [2023-12-16 05:36:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 243 states have (on average 1.5967078189300412) internal successors, (388), 244 states have internal predecessors, (388), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 05:36:51,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 489 transitions. [2023-12-16 05:36:51,076 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 489 transitions. Word has length 94 [2023-12-16 05:36:51,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:51,092 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 489 transitions. [2023-12-16 05:36:51,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2023-12-16 05:36:51,093 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 489 transitions. [2023-12-16 05:36:51,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 05:36:51,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:51,095 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-16 05:36:51,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:51,321 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 [2023-12-16 05:36:51,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:51,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:51,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1127205181, now seen corresponding path program 1 times [2023-12-16 05:36:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:51,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111179450] [2023-12-16 05:36:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:36:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:36:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:36:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:36:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,589 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:36:51,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:51,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111179450] [2023-12-16 05:36:51,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111179450] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:51,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81971112] [2023-12-16 05:36:51,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:51,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:51,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:51,617 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) [2023-12-16 05:36:51,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:36:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:51,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 05:36:51,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 05:36:51,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:51,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81971112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:51,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:51,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 05:36:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116307102] [2023-12-16 05:36:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:51,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:36:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:36:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:51,992 INFO L87 Difference]: Start difference. First operand 312 states and 489 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-12-16 05:36:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:52,230 INFO L93 Difference]: Finished difference Result 619 states and 972 transitions. [2023-12-16 05:36:52,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:36:52,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 95 [2023-12-16 05:36:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:52,235 INFO L225 Difference]: With dead ends: 619 [2023-12-16 05:36:52,235 INFO L226 Difference]: Without dead ends: 314 [2023-12-16 05:36:52,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:52,237 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 8 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:52,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1525 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 05:36:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-16 05:36:52,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2023-12-16 05:36:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 244 states have (on average 1.5942622950819672) internal successors, (389), 246 states have internal predecessors, (389), 51 states have call successors, (51), 17 states have call predecessors, (51), 18 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2023-12-16 05:36:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 492 transitions. [2023-12-16 05:36:52,254 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 492 transitions. Word has length 95 [2023-12-16 05:36:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:52,255 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 492 transitions. [2023-12-16 05:36:52,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-12-16 05:36:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 492 transitions. [2023-12-16 05:36:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 05:36:52,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:52,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:52,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:52,468 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 [2023-12-16 05:36:52,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:52,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1528931937, now seen corresponding path program 1 times [2023-12-16 05:36:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:52,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028381891] [2023-12-16 05:36:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:52,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:36:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:36:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:36:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:36:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:36:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:36:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028381891] [2023-12-16 05:36:52,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028381891] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365540942] [2023-12-16 05:36:52,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:52,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:52,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:52,736 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) [2023-12-16 05:36:52,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:36:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 05:36:52,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-16 05:36:52,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:52,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365540942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:52,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:52,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-16 05:36:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799920999] [2023-12-16 05:36:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:52,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:36:52,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:36:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:36:52,983 INFO L87 Difference]: Start difference. First operand 314 states and 492 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-12-16 05:36:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:53,057 INFO L93 Difference]: Finished difference Result 621 states and 977 transitions. [2023-12-16 05:36:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:36:53,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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 96 [2023-12-16 05:36:53,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:53,059 INFO L225 Difference]: With dead ends: 621 [2023-12-16 05:36:53,059 INFO L226 Difference]: Without dead ends: 316 [2023-12-16 05:36:53,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-16 05:36:53,061 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 8 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:53,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1511 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-12-16 05:36:53,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2023-12-16 05:36:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 245 states have (on average 1.5918367346938775) internal successors, (390), 248 states have internal predecessors, (390), 51 states have call successors, (51), 17 states have call predecessors, (51), 19 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2023-12-16 05:36:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 498 transitions. [2023-12-16 05:36:53,071 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 498 transitions. Word has length 96 [2023-12-16 05:36:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:53,071 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 498 transitions. [2023-12-16 05:36:53,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-12-16 05:36:53,071 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 498 transitions. [2023-12-16 05:36:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-16 05:36:53,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:53,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:53,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:53,279 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 [2023-12-16 05:36:53,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:53,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:53,280 INFO L85 PathProgramCache]: Analyzing trace with hash 683114967, now seen corresponding path program 1 times [2023-12-16 05:36:53,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:53,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406131095] [2023-12-16 05:36:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:53,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:36:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:36:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:36:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:36:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:36:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:36:53,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:53,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406131095] [2023-12-16 05:36:53,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406131095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:53,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:53,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:36:53,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571463098] [2023-12-16 05:36:53,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:53,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:36:53,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:53,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:36:53,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:53,412 INFO L87 Difference]: Start difference. First operand 316 states and 498 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 05:36:54,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:54,833 INFO L93 Difference]: Finished difference Result 694 states and 1107 transitions. [2023-12-16 05:36:54,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:36:54,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (14), 6 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 97 [2023-12-16 05:36:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:54,836 INFO L225 Difference]: With dead ends: 694 [2023-12-16 05:36:54,836 INFO L226 Difference]: Without dead ends: 397 [2023-12-16 05:36:54,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:36:54,837 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 852 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:54,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 963 Invalid, 2086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:54,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-16 05:36:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 316. [2023-12-16 05:36:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 245 states have (on average 1.5918367346938775) internal successors, (390), 248 states have internal predecessors, (390), 51 states have call successors, (51), 17 states have call predecessors, (51), 19 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2023-12-16 05:36:54,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 497 transitions. [2023-12-16 05:36:54,854 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 497 transitions. Word has length 97 [2023-12-16 05:36:54,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:54,854 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 497 transitions. [2023-12-16 05:36:54,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 05:36:54,854 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 497 transitions. [2023-12-16 05:36:54,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-16 05:36:54,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:54,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:54,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:36:54,856 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:54,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:54,856 INFO L85 PathProgramCache]: Analyzing trace with hash 141922713, now seen corresponding path program 2 times [2023-12-16 05:36:54,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:54,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339238592] [2023-12-16 05:36:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:36:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:36:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:36:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:36:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:36:54,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:54,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339238592] [2023-12-16 05:36:54,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339238592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:54,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:54,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:36:54,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742701584] [2023-12-16 05:36:54,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:54,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:36:54,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:54,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:36:54,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:54,971 INFO L87 Difference]: Start difference. First operand 316 states and 497 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 05:36:56,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:56,171 INFO L93 Difference]: Finished difference Result 696 states and 1110 transitions. [2023-12-16 05:36:56,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:36:56,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (14), 6 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 98 [2023-12-16 05:36:56,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:56,174 INFO L225 Difference]: With dead ends: 696 [2023-12-16 05:36:56,174 INFO L226 Difference]: Without dead ends: 399 [2023-12-16 05:36:56,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:36:56,175 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 847 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1861 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:56,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 963 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1861 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 05:36:56,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-12-16 05:36:56,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 318. [2023-12-16 05:36:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 246 states have (on average 1.589430894308943) internal successors, (391), 250 states have internal predecessors, (391), 51 states have call successors, (51), 17 states have call predecessors, (51), 20 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2023-12-16 05:36:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 500 transitions. [2023-12-16 05:36:56,191 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 500 transitions. Word has length 98 [2023-12-16 05:36:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:56,191 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 500 transitions. [2023-12-16 05:36:56,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-16 05:36:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 500 transitions. [2023-12-16 05:36:56,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 05:36:56,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:56,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:56,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:36:56,193 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:56,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:56,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1799415004, now seen corresponding path program 1 times [2023-12-16 05:36:56,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:56,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23526263] [2023-12-16 05:36:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:56,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:36:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:56,346 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:36:56,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23526263] [2023-12-16 05:36:56,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23526263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:56,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:36:56,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339313941] [2023-12-16 05:36:56,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:56,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:36:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:56,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:36:56,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:56,347 INFO L87 Difference]: Start difference. First operand 318 states and 500 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-16 05:36:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:58,268 INFO L93 Difference]: Finished difference Result 694 states and 1105 transitions. [2023-12-16 05:36:58,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:36:58,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (14), 6 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 99 [2023-12-16 05:36:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:58,271 INFO L225 Difference]: With dead ends: 694 [2023-12-16 05:36:58,271 INFO L226 Difference]: Without dead ends: 399 [2023-12-16 05:36:58,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:36:58,273 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 858 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:58,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1331 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:36:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-12-16 05:36:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 318. [2023-12-16 05:36:58,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 246 states have (on average 1.589430894308943) internal successors, (391), 250 states have internal predecessors, (391), 51 states have call successors, (51), 17 states have call predecessors, (51), 20 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2023-12-16 05:36:58,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 499 transitions. [2023-12-16 05:36:58,293 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 499 transitions. Word has length 99 [2023-12-16 05:36:58,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:58,294 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 499 transitions. [2023-12-16 05:36:58,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-16 05:36:58,294 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 499 transitions. [2023-12-16 05:36:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 05:36:58,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:58,295 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:58,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:36:58,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:58,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:58,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1764003318, now seen corresponding path program 2 times [2023-12-16 05:36:58,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:58,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838151535] [2023-12-16 05:36:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:36:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:36:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:36:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:36:58,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:58,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838151535] [2023-12-16 05:36:58,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838151535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:58,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:58,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:36:58,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849872710] [2023-12-16 05:36:58,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:58,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:36:58,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:58,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:36:58,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:58,474 INFO L87 Difference]: Start difference. First operand 318 states and 499 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-16 05:36:59,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:59,992 INFO L93 Difference]: Finished difference Result 696 states and 1111 transitions. [2023-12-16 05:36:59,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:36:59,992 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (14), 6 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 100 [2023-12-16 05:36:59,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:59,994 INFO L225 Difference]: With dead ends: 696 [2023-12-16 05:36:59,994 INFO L226 Difference]: Without dead ends: 401 [2023-12-16 05:36:59,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:36:59,995 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 853 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3092 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 3328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 3092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:59,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1331 Invalid, 3328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 3092 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 05:36:59,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-12-16 05:37:00,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 320. [2023-12-16 05:37:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 247 states have (on average 1.5870445344129556) internal successors, (392), 252 states have internal predecessors, (392), 51 states have call successors, (51), 17 states have call predecessors, (51), 21 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2023-12-16 05:37:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 505 transitions. [2023-12-16 05:37:00,019 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 505 transitions. Word has length 100 [2023-12-16 05:37:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:00,020 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 505 transitions. [2023-12-16 05:37:00,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-16 05:37:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 505 transitions. [2023-12-16 05:37:00,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 05:37:00,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:00,022 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:00,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:37:00,022 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:00,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:00,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2099335903, now seen corresponding path program 1 times [2023-12-16 05:37:00,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:00,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514955041] [2023-12-16 05:37:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:00,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:37:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:37:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:37:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:37:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:37:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:37:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-16 05:37:00,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:00,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514955041] [2023-12-16 05:37:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514955041] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:37:00,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188157252] [2023-12-16 05:37:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:00,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:37:00,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:37:00,174 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) [2023-12-16 05:37:00,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:37:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:37:00,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:37:00,407 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:00,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:37:00,476 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:00,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188157252] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:37:00,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:37:00,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-16 05:37:00,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449305176] [2023-12-16 05:37:00,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:37:00,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 05:37:00,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 05:37:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:37:00,478 INFO L87 Difference]: Start difference. First operand 320 states and 505 transitions. Second operand has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-16 05:37:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:03,263 INFO L93 Difference]: Finished difference Result 1025 states and 1722 transitions. [2023-12-16 05:37:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 05:37:03,264 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 101 [2023-12-16 05:37:03,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:03,267 INFO L225 Difference]: With dead ends: 1025 [2023-12-16 05:37:03,267 INFO L226 Difference]: Without dead ends: 731 [2023-12-16 05:37:03,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-16 05:37:03,269 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1824 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 3463 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 3980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:03,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 1513 Invalid, 3980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3463 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 05:37:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-12-16 05:37:03,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 635. [2023-12-16 05:37:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 498 states have (on average 1.6265060240963856) internal successors, (810), 503 states have internal predecessors, (810), 115 states have call successors, (115), 17 states have call predecessors, (115), 21 states have return successors, (136), 114 states have call predecessors, (136), 114 states have call successors, (136) [2023-12-16 05:37:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1061 transitions. [2023-12-16 05:37:03,351 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1061 transitions. Word has length 101 [2023-12-16 05:37:03,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:03,352 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 1061 transitions. [2023-12-16 05:37:03,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (29), 6 states have call predecessors, (29), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-16 05:37:03,352 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1061 transitions. [2023-12-16 05:37:03,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 05:37:03,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:03,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:03,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 05:37:03,592 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 [2023-12-16 05:37:03,592 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:03,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:03,593 INFO L85 PathProgramCache]: Analyzing trace with hash -484648275, now seen corresponding path program 1 times [2023-12-16 05:37:03,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:03,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95047133] [2023-12-16 05:37:03,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:03,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:37:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:37:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:37:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:37:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:37:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:37:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:03,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:03,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:03,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95047133] [2023-12-16 05:37:03,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95047133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:03,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:03,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:03,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026737333] [2023-12-16 05:37:03,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:03,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:03,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:03,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:03,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:03,731 INFO L87 Difference]: Start difference. First operand 635 states and 1061 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:04,570 INFO L93 Difference]: Finished difference Result 1580 states and 2711 transitions. [2023-12-16 05:37:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:04,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 6 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 105 [2023-12-16 05:37:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:04,575 INFO L225 Difference]: With dead ends: 1580 [2023-12-16 05:37:04,575 INFO L226 Difference]: Without dead ends: 1013 [2023-12-16 05:37:04,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:04,577 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 940 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:04,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 740 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 05:37:04,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2023-12-16 05:37:04,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 927. [2023-12-16 05:37:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 726 states have (on average 1.6349862258953167) internal successors, (1187), 731 states have internal predecessors, (1187), 179 states have call successors, (179), 17 states have call predecessors, (179), 21 states have return successors, (210), 178 states have call predecessors, (210), 178 states have call successors, (210) [2023-12-16 05:37:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1576 transitions. [2023-12-16 05:37:04,611 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1576 transitions. Word has length 105 [2023-12-16 05:37:04,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:04,611 INFO L495 AbstractCegarLoop]: Abstraction has 927 states and 1576 transitions. [2023-12-16 05:37:04,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1576 transitions. [2023-12-16 05:37:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 05:37:04,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:04,614 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:04,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 05:37:04,614 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:04,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:04,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2049656214, now seen corresponding path program 1 times [2023-12-16 05:37:04,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:04,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384210444] [2023-12-16 05:37:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:04,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:37:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:37:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:37:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:37:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:37:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:37:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:04,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:04,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384210444] [2023-12-16 05:37:04,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384210444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:04,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:04,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:04,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669899547] [2023-12-16 05:37:04,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:04,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:04,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:04,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:04,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:04,695 INFO L87 Difference]: Start difference. First operand 927 states and 1576 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:05,709 INFO L93 Difference]: Finished difference Result 2297 states and 3968 transitions. [2023-12-16 05:37:05,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:05,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 6 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 106 [2023-12-16 05:37:05,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:05,716 INFO L225 Difference]: With dead ends: 2297 [2023-12-16 05:37:05,717 INFO L226 Difference]: Without dead ends: 1488 [2023-12-16 05:37:05,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:05,720 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 938 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:05,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 710 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:37:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2023-12-16 05:37:05,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1402. [2023-12-16 05:37:05,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1106 states have (on average 1.6374321880650995) internal successors, (1811), 1111 states have internal predecessors, (1811), 274 states have call successors, (274), 17 states have call predecessors, (274), 21 states have return successors, (305), 273 states have call predecessors, (305), 273 states have call successors, (305) [2023-12-16 05:37:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2390 transitions. [2023-12-16 05:37:05,767 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2390 transitions. Word has length 106 [2023-12-16 05:37:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:05,767 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 2390 transitions. [2023-12-16 05:37:05,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:05,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2390 transitions. [2023-12-16 05:37:05,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 05:37:05,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:05,771 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:05,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:37:05,772 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:05,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:05,772 INFO L85 PathProgramCache]: Analyzing trace with hash 843187611, now seen corresponding path program 1 times [2023-12-16 05:37:05,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:05,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765579472] [2023-12-16 05:37:05,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:05,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:37:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:37:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:37:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:37:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:37:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:37:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:05,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:05,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765579472] [2023-12-16 05:37:05,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765579472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:05,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:05,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:05,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481963264] [2023-12-16 05:37:05,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:05,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:05,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:05,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:05,852 INFO L87 Difference]: Start difference. First operand 1402 states and 2390 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:07,159 INFO L93 Difference]: Finished difference Result 3359 states and 5846 transitions. [2023-12-16 05:37:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 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 107 [2023-12-16 05:37:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:07,169 INFO L225 Difference]: With dead ends: 3359 [2023-12-16 05:37:07,169 INFO L226 Difference]: Without dead ends: 2203 [2023-12-16 05:37:07,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:07,174 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 937 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:07,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 701 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:37:07,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2023-12-16 05:37:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2117. [2023-12-16 05:37:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1698 states have (on average 1.6401648998822145) internal successors, (2785), 1703 states have internal predecessors, (2785), 397 states have call successors, (397), 17 states have call predecessors, (397), 21 states have return successors, (444), 396 states have call predecessors, (444), 396 states have call successors, (444) [2023-12-16 05:37:07,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3626 transitions. [2023-12-16 05:37:07,244 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3626 transitions. Word has length 107 [2023-12-16 05:37:07,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:07,244 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 3626 transitions. [2023-12-16 05:37:07,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:07,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3626 transitions. [2023-12-16 05:37:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 05:37:07,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:07,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:07,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:37:07,253 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:07,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1495339625, now seen corresponding path program 1 times [2023-12-16 05:37:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:07,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393960884] [2023-12-16 05:37:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:37:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:37:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:37:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:37:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:37:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:37:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:07,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:07,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393960884] [2023-12-16 05:37:07,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393960884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:07,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:07,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:07,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004649822] [2023-12-16 05:37:07,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:07,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:07,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:07,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:07,321 INFO L87 Difference]: Start difference. First operand 2117 states and 3626 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:08,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:08,334 INFO L93 Difference]: Finished difference Result 5001 states and 8759 transitions. [2023-12-16 05:37:08,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:08,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 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 108 [2023-12-16 05:37:08,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:08,348 INFO L225 Difference]: With dead ends: 5001 [2023-12-16 05:37:08,348 INFO L226 Difference]: Without dead ends: 3339 [2023-12-16 05:37:08,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:08,355 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 935 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:08,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 702 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:37:08,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3339 states. [2023-12-16 05:37:08,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3339 to 3253. [2023-12-16 05:37:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 2655 states have (on average 1.6418079096045197) internal successors, (4359), 2660 states have internal predecessors, (4359), 576 states have call successors, (576), 17 states have call predecessors, (576), 21 states have return successors, (649), 575 states have call predecessors, (649), 575 states have call successors, (649) [2023-12-16 05:37:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5584 transitions. [2023-12-16 05:37:08,499 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5584 transitions. Word has length 108 [2023-12-16 05:37:08,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:08,499 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5584 transitions. [2023-12-16 05:37:08,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5584 transitions. [2023-12-16 05:37:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-16 05:37:08,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:08,506 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:08,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:37:08,506 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:08,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1445763529, now seen corresponding path program 1 times [2023-12-16 05:37:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827160763] [2023-12-16 05:37:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:08,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:37:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:37:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:37:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:37:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:37:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:37:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:08,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:08,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827160763] [2023-12-16 05:37:08,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827160763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:08,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:08,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:08,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412175027] [2023-12-16 05:37:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:08,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:08,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:08,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:08,582 INFO L87 Difference]: Start difference. First operand 3253 states and 5584 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:09,555 INFO L93 Difference]: Finished difference Result 7956 states and 13957 transitions. [2023-12-16 05:37:09,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:09,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 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 109 [2023-12-16 05:37:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:09,577 INFO L225 Difference]: With dead ends: 7956 [2023-12-16 05:37:09,577 INFO L226 Difference]: Without dead ends: 5397 [2023-12-16 05:37:09,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:09,587 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 933 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:09,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 743 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:37:09,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2023-12-16 05:37:09,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5311. [2023-12-16 05:37:09,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 4337 states have (on average 1.632925985704404) internal successors, (7082), 4342 states have internal predecessors, (7082), 952 states have call successors, (952), 17 states have call predecessors, (952), 21 states have return successors, (1069), 951 states have call predecessors, (1069), 951 states have call successors, (1069) [2023-12-16 05:37:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 9103 transitions. [2023-12-16 05:37:09,886 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 9103 transitions. Word has length 109 [2023-12-16 05:37:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:09,886 INFO L495 AbstractCegarLoop]: Abstraction has 5311 states and 9103 transitions. [2023-12-16 05:37:09,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 9103 transitions. [2023-12-16 05:37:09,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 05:37:09,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:09,896 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:09,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:37:09,897 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:09,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:09,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1461390587, now seen corresponding path program 1 times [2023-12-16 05:37:09,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:09,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178111442] [2023-12-16 05:37:09,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:09,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:37:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:37:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:37:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:37:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:37:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:37:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:09,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:09,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178111442] [2023-12-16 05:37:09,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178111442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:09,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:09,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:09,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973490988] [2023-12-16 05:37:09,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:09,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:09,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:09,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:09,972 INFO L87 Difference]: Start difference. First operand 5311 states and 9103 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:11,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:11,398 INFO L93 Difference]: Finished difference Result 13161 states and 23041 transitions. [2023-12-16 05:37:11,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:11,399 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 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 110 [2023-12-16 05:37:11,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:11,443 INFO L225 Difference]: With dead ends: 13161 [2023-12-16 05:37:11,444 INFO L226 Difference]: Without dead ends: 8930 [2023-12-16 05:37:11,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:11,457 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 930 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:11,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 703 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:37:11,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2023-12-16 05:37:11,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 8844. [2023-12-16 05:37:11,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8844 states, 7264 states have (on average 1.629818281938326) internal successors, (11839), 7269 states have internal predecessors, (11839), 1558 states have call successors, (1558), 17 states have call predecessors, (1558), 21 states have return successors, (1753), 1557 states have call predecessors, (1753), 1557 states have call successors, (1753) [2023-12-16 05:37:11,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8844 states to 8844 states and 15150 transitions. [2023-12-16 05:37:11,833 INFO L78 Accepts]: Start accepts. Automaton has 8844 states and 15150 transitions. Word has length 110 [2023-12-16 05:37:11,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:11,833 INFO L495 AbstractCegarLoop]: Abstraction has 8844 states and 15150 transitions. [2023-12-16 05:37:11,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:11,834 INFO L276 IsEmpty]: Start isEmpty. Operand 8844 states and 15150 transitions. [2023-12-16 05:37:11,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 05:37:11,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:11,846 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:11,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:37:11,846 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:11,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:11,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1991589657, now seen corresponding path program 1 times [2023-12-16 05:37:11,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:11,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290486386] [2023-12-16 05:37:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:37:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:37:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:37:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:37:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:37:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:37:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:11,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:11,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290486386] [2023-12-16 05:37:11,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290486386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:11,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:11,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:11,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208869332] [2023-12-16 05:37:11,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:11,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:11,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:11,914 INFO L87 Difference]: Start difference. First operand 8844 states and 15150 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:13,373 INFO L93 Difference]: Finished difference Result 22933 states and 40070 transitions. [2023-12-16 05:37:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:13,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 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 [2023-12-16 05:37:13,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:13,435 INFO L225 Difference]: With dead ends: 22933 [2023-12-16 05:37:13,435 INFO L226 Difference]: Without dead ends: 15602 [2023-12-16 05:37:13,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:13,461 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 928 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:13,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 721 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:37:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15602 states. [2023-12-16 05:37:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15602 to 15516. [2023-12-16 05:37:14,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15516 states, 12733 states have (on average 1.6200424094871593) internal successors, (20628), 12738 states have internal predecessors, (20628), 2761 states have call successors, (2761), 17 states have call predecessors, (2761), 21 states have return successors, (3100), 2760 states have call predecessors, (3100), 2760 states have call successors, (3100) [2023-12-16 05:37:14,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15516 states to 15516 states and 26489 transitions. [2023-12-16 05:37:14,305 INFO L78 Accepts]: Start accepts. Automaton has 15516 states and 26489 transitions. Word has length 111 [2023-12-16 05:37:14,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:14,305 INFO L495 AbstractCegarLoop]: Abstraction has 15516 states and 26489 transitions. [2023-12-16 05:37:14,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:14,305 INFO L276 IsEmpty]: Start isEmpty. Operand 15516 states and 26489 transitions. [2023-12-16 05:37:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 05:37:14,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:14,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:14,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:37:14,353 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:14,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:14,353 INFO L85 PathProgramCache]: Analyzing trace with hash -768487268, now seen corresponding path program 1 times [2023-12-16 05:37:14,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:14,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259287342] [2023-12-16 05:37:14,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:14,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:37:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:37:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:37:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:37:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:37:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:37:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:14,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:14,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259287342] [2023-12-16 05:37:14,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259287342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:14,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:14,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:14,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736453325] [2023-12-16 05:37:14,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:14,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:14,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:14,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:14,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:14,554 INFO L87 Difference]: Start difference. First operand 15516 states and 26489 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:16,216 INFO L93 Difference]: Finished difference Result 41100 states and 71668 transitions. [2023-12-16 05:37:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 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 [2023-12-16 05:37:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:16,308 INFO L225 Difference]: With dead ends: 41100 [2023-12-16 05:37:16,309 INFO L226 Difference]: Without dead ends: 27717 [2023-12-16 05:37:16,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:16,340 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 926 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:16,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 703 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1054 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 05:37:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27717 states. [2023-12-16 05:37:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27717 to 27631. [2023-12-16 05:37:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27631 states, 22809 states have (on average 1.6158095488622912) internal successors, (36855), 22814 states have internal predecessors, (36855), 4800 states have call successors, (4800), 17 states have call predecessors, (4800), 21 states have return successors, (5413), 4799 states have call predecessors, (5413), 4799 states have call successors, (5413) [2023-12-16 05:37:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27631 states to 27631 states and 47068 transitions. [2023-12-16 05:37:17,354 INFO L78 Accepts]: Start accepts. Automaton has 27631 states and 47068 transitions. Word has length 112 [2023-12-16 05:37:17,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:17,355 INFO L495 AbstractCegarLoop]: Abstraction has 27631 states and 47068 transitions. [2023-12-16 05:37:17,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:17,355 INFO L276 IsEmpty]: Start isEmpty. Operand 27631 states and 47068 transitions. [2023-12-16 05:37:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-16 05:37:17,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:17,380 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:17,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:37:17,380 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:17,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1490886747, now seen corresponding path program 1 times [2023-12-16 05:37:17,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:17,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678260932] [2023-12-16 05:37:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:17,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:37:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:37:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:37:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:37:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:37:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:37:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:17,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:17,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678260932] [2023-12-16 05:37:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678260932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:17,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:17,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727361098] [2023-12-16 05:37:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:17,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:17,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:17,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:17,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:17,510 INFO L87 Difference]: Start difference. First operand 27631 states and 47068 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:19,706 INFO L93 Difference]: Finished difference Result 75292 states and 130462 transitions. [2023-12-16 05:37:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:19,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 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 [2023-12-16 05:37:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:20,169 INFO L225 Difference]: With dead ends: 75292 [2023-12-16 05:37:20,169 INFO L226 Difference]: Without dead ends: 50541 [2023-12-16 05:37:20,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:20,229 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 924 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:20,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 717 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:37:20,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50541 states. [2023-12-16 05:37:22,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50541 to 50455. [2023-12-16 05:37:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50455 states, 41918 states have (on average 1.6103583186220716) internal successors, (67503), 41923 states have internal predecessors, (67503), 8515 states have call successors, (8515), 17 states have call predecessors, (8515), 21 states have return successors, (9660), 8514 states have call predecessors, (9660), 8514 states have call successors, (9660) [2023-12-16 05:37:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50455 states to 50455 states and 85678 transitions. [2023-12-16 05:37:22,665 INFO L78 Accepts]: Start accepts. Automaton has 50455 states and 85678 transitions. Word has length 113 [2023-12-16 05:37:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:22,665 INFO L495 AbstractCegarLoop]: Abstraction has 50455 states and 85678 transitions. [2023-12-16 05:37:22,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 50455 states and 85678 transitions. [2023-12-16 05:37:22,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 05:37:22,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:22,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:22,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 05:37:22,701 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:22,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:22,702 INFO L85 PathProgramCache]: Analyzing trace with hash -401494308, now seen corresponding path program 1 times [2023-12-16 05:37:22,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:22,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824396384] [2023-12-16 05:37:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:37:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:37:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:37:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:37:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:37:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:37:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:22,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824396384] [2023-12-16 05:37:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824396384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:22,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888176311] [2023-12-16 05:37:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:22,781 INFO L87 Difference]: Start difference. First operand 50455 states and 85678 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:25,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:25,598 INFO L93 Difference]: Finished difference Result 94039 states and 163368 transitions. [2023-12-16 05:37:25,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:25,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 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 [2023-12-16 05:37:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:25,930 INFO L225 Difference]: With dead ends: 94039 [2023-12-16 05:37:25,931 INFO L226 Difference]: Without dead ends: 93921 [2023-12-16 05:37:25,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:25,969 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 923 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:25,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 702 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 05:37:26,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93921 states. [2023-12-16 05:37:29,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93921 to 93835. [2023-12-16 05:37:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93835 states, 78499 states have (on average 1.6034726557026204) internal successors, (125871), 78504 states have internal predecessors, (125871), 15314 states have call successors, (15314), 17 states have call predecessors, (15314), 21 states have return successors, (17505), 15313 states have call predecessors, (17505), 15313 states have call successors, (17505) [2023-12-16 05:37:30,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93835 states to 93835 states and 158690 transitions. [2023-12-16 05:37:30,359 INFO L78 Accepts]: Start accepts. Automaton has 93835 states and 158690 transitions. Word has length 114 [2023-12-16 05:37:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:30,360 INFO L495 AbstractCegarLoop]: Abstraction has 93835 states and 158690 transitions. [2023-12-16 05:37:30,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:30,360 INFO L276 IsEmpty]: Start isEmpty. Operand 93835 states and 158690 transitions. [2023-12-16 05:37:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 05:37:30,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:30,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:30,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 05:37:30,394 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:30,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash -249797574, now seen corresponding path program 1 times [2023-12-16 05:37:30,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:30,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784938962] [2023-12-16 05:37:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:30,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:37:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:37:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:37:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:37:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:37:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:37:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:30,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:30,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784938962] [2023-12-16 05:37:30,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784938962] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:30,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:30,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 05:37:30,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485893784] [2023-12-16 05:37:30,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:30,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:37:30,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:30,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:37:30,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:37:30,543 INFO L87 Difference]: Start difference. First operand 93835 states and 158690 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:34,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:34,841 INFO L93 Difference]: Finished difference Result 94218 states and 162552 transitions. [2023-12-16 05:37:34,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 05:37:34,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-16 05:37:34,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:35,288 INFO L225 Difference]: With dead ends: 94218 [2023-12-16 05:37:35,289 INFO L226 Difference]: Without dead ends: 94107 [2023-12-16 05:37:35,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2023-12-16 05:37:35,316 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1301 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 3322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:35,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 952 Invalid, 3322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:37:35,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94107 states. [2023-12-16 05:37:38,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94107 to 93948. [2023-12-16 05:37:38,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93948 states, 78589 states have (on average 1.6033668834060746) internal successors, (126007), 78594 states have internal predecessors, (126007), 15326 states have call successors, (15326), 26 states have call predecessors, (15326), 32 states have return successors, (17520), 15327 states have call predecessors, (17520), 15324 states have call successors, (17520) [2023-12-16 05:37:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93948 states to 93948 states and 158853 transitions. [2023-12-16 05:37:39,045 INFO L78 Accepts]: Start accepts. Automaton has 93948 states and 158853 transitions. Word has length 115 [2023-12-16 05:37:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:39,045 INFO L495 AbstractCegarLoop]: Abstraction has 93948 states and 158853 transitions. [2023-12-16 05:37:39,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-16 05:37:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 93948 states and 158853 transitions. [2023-12-16 05:37:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 05:37:39,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:39,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:39,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:37:39,077 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:39,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:39,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1413052392, now seen corresponding path program 1 times [2023-12-16 05:37:39,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:39,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652398619] [2023-12-16 05:37:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:39,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:37:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:37:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:37:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:37:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:37:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:37:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:39,305 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:37:39,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:39,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652398619] [2023-12-16 05:37:39,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652398619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:39,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:39,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-16 05:37:39,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771841587] [2023-12-16 05:37:39,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:39,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 05:37:39,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:39,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 05:37:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:37:39,307 INFO L87 Difference]: Start difference. First operand 93948 states and 158853 transitions. Second operand has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 9 states have internal predecessors, (74), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-16 05:37:44,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:44,090 INFO L93 Difference]: Finished difference Result 94561 states and 163097 transitions. [2023-12-16 05:37:44,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-16 05:37:44,091 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 9 states have internal predecessors, (74), 7 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 116 [2023-12-16 05:37:44,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:44,544 INFO L225 Difference]: With dead ends: 94561 [2023-12-16 05:37:44,545 INFO L226 Difference]: Without dead ends: 94149 [2023-12-16 05:37:44,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=327, Invalid=1313, Unknown=0, NotChecked=0, Total=1640 [2023-12-16 05:37:44,581 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1441 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 3861 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 4210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:44,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 1608 Invalid, 4210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3861 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:37:44,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94149 states. Received shutdown request... [2023-12-16 05:37:46,229 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:37:47,256 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 [2023-12-16 05:37:47,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94149 to 93985. [2023-12-16 05:37:47,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93985 states, 78618 states have (on average 1.603284235162431) internal successors, (126047), 78626 states have internal predecessors, (126047), 15332 states have call successors, (15332), 27 states have call predecessors, (15332), 34 states have return successors, (17528), 15331 states have call predecessors, (17528), 15330 states have call successors, (17528) [2023-12-16 05:37:47,702 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:37:47,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 05:37:47,703 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 05:37:47,706 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] [2023-12-16 05:37:47,707 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:37:47,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:37:47 BoogieIcfgContainer [2023-12-16 05:37:47,709 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:37:47,709 INFO L158 Benchmark]: Toolchain (without parser) took 61328.95ms. Allocated memory was 188.7MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 150.8MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 05:37:47,709 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory was 147.1MB in the beginning and 146.9MB in the end (delta: 143.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:37:47,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 885.34ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 150.5MB in the beginning and 195.0MB in the end (delta: -44.6MB). Peak memory consumption was 48.1MB. Max. memory is 8.0GB. [2023-12-16 05:37:47,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.47ms. Allocated memory is still 226.5MB. Free memory was 195.0MB in the beginning and 189.3MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 05:37:47,710 INFO L158 Benchmark]: Boogie Preprocessor took 201.03ms. Allocated memory is still 226.5MB. Free memory was 189.3MB in the beginning and 183.5MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:37:47,710 INFO L158 Benchmark]: RCFGBuilder took 906.32ms. Allocated memory is still 226.5MB. Free memory was 183.5MB in the beginning and 190.7MB in the end (delta: -7.2MB). Peak memory consumption was 63.5MB. Max. memory is 8.0GB. [2023-12-16 05:37:47,710 INFO L158 Benchmark]: TraceAbstraction took 59223.58ms. Allocated memory was 226.5MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 190.2MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 05:37:47,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory was 147.1MB in the beginning and 146.9MB in the end (delta: 143.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 885.34ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 150.5MB in the beginning and 195.0MB in the end (delta: -44.6MB). Peak memory consumption was 48.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 108.47ms. Allocated memory is still 226.5MB. Free memory was 195.0MB in the beginning and 189.3MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 201.03ms. Allocated memory is still 226.5MB. Free memory was 189.3MB in the beginning and 183.5MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 906.32ms. Allocated memory is still 226.5MB. Free memory was 183.5MB in the beginning and 190.7MB in the end (delta: -7.2MB). Peak memory consumption was 63.5MB. Max. memory is 8.0GB. * TraceAbstraction took 59223.58ms. Allocated memory was 226.5MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 190.2MB in the beginning and 5.4GB in the end (delta: -5.2GB). Peak memory consumption was 1.9GB. 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,"ClientLib.i","") [48] - GenericResultAtLocation [Line: 1128]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1128] - GenericResultAtLocation [Line: 1540]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1540] - GenericResultAtLocation [Line: 1847]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1847] - GenericResultAtLocation [Line: 1946]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1946] - GenericResultAtLocation [Line: 2162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2162] - GenericResultAtLocation [Line: 2528]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2528] - GenericResultAtLocation [Line: 2563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2563] - GenericResultAtLocation [Line: 2591]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2591] - GenericResultAtLocation [Line: 2877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2877] - GenericResultAtLocation [Line: 2886]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2886] * 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: 2882]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2882). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 18 procedures, 266 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.2s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 35.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17610 SdHoareTripleChecker+Valid, 21.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17408 mSDsluCounter, 20771 SdHoareTripleChecker+Invalid, 17.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16102 mSDsCounter, 4990 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31030 IncrementalHoareTripleChecker+Invalid, 36020 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4990 mSolverCounterUnsat, 4669 mSDtfsCounter, 31030 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1521 GetRequests, 1194 SyntacticMatches, 0 SemanticMatches, 327 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93948occurred in iteration=21, InterpolantAutomatonStates: 230, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.7s AutomataMinimizationTime, 22 MinimizatonAttempts, 1444 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2838 NumberOfCodeBlocks, 2838 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2910 ConstructedInterpolants, 0 QuantifiedInterpolants, 5173 SizeOfPredicates, 8 NumberOfNonLiveVariables, 5631 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 29 InterpolantComputations, 21 PerfectInterpolantSequences, 962/988 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