/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:45:16,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:45:16,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:45:16,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:45:16,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:45:16,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:45:16,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:45:16,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:45:16,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:45:16,277 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:45:16,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:45:16,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:45:16,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:45:16,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:45:16,279 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:45:16,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:45:16,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:45:16,280 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:45:16,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:45:16,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:45:16,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:45:16,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:45:16,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:45:16,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:45:16,281 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:45:16,281 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:45:16,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:45:16,282 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:45:16,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:45:16,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:45:16,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:45:16,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:45:16,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:45:16,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:45:16,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:45:16,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:45:16,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:45:16,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:45:16,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:45:16,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:45:16,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:45:16,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:45:16,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:45:16,285 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:45:16,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:45:16,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:45:16,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:45:16,510 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:45:16,510 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:45:16,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2023-12-15 22:45:17,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:45:17,724 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:45:17,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product18.cil.c [2023-12-15 22:45:17,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5a8df29/6a3fefa7c9cb4e6180ec25d996aa90de/FLAG027a6308f [2023-12-15 22:45:17,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef5a8df29/6a3fefa7c9cb4e6180ec25d996aa90de [2023-12-15 22:45:17,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:45:17,773 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:45:17,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:45:17,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:45:17,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:45:17,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:45:17" (1/1) ... [2023-12-15 22:45:17,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c16006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:17, skipping insertion in model container [2023-12-15 22:45:17,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:45:17" (1/1) ... [2023-12-15 22:45:17,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:45:18,259 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_spec27_product18.cil.c[62382,62395] [2023-12-15 22:45:18,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:45:18,273 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:45:18,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-15 22:45:18,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [363] [2023-12-15 22:45:18,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [729] [2023-12-15 22:45:18,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1801] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1908] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1925] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2329] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2545] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2831] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2863] [2023-12-15 22:45:18,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2898] [2023-12-15 22:45:18,377 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_spec27_product18.cil.c[62382,62395] [2023-12-15 22:45:18,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:45:18,403 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:45:18,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18 WrapperNode [2023-12-15 22:45:18,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:45:18,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:45:18,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:45:18,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:45:18,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,497 INFO L138 Inliner]: procedures = 127, calls = 186, calls flagged for inlining = 57, calls inlined = 49, statements flattened = 865 [2023-12-15 22:45:18,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:45:18,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:45:18,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:45:18,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:45:18,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,520 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,543 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-15 22:45:18,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,562 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:45:18,593 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:45:18,593 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:45:18,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:45:18,594 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (1/1) ... [2023-12-15 22:45:18,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:45:18,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:18,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:45:18,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:45:18,724 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:45:18,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:45:18,724 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:45:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:45:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-15 22:45:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-15 22:45:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:45:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:45:18,725 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-15 22:45:18,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-15 22:45:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:45:18,726 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:45:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:45:18,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:45:18,726 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:45:18,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:45:18,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:45:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-15 22:45:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-15 22:45:18,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:45:18,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:45:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:45:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:45:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:45:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:45:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-12-15 22:45:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-12-15 22:45:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-15 22:45:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-15 22:45:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:45:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:45:18,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:45:18,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:45:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-15 22:45:18,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-15 22:45:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:45:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:45:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:45:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:45:18,731 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:45:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:45:18,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:45:18,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:45:18,925 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:45:18,927 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:45:19,425 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:45:19,458 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:45:19,459 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:45:19,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:45:19 BoogieIcfgContainer [2023-12-15 22:45:19,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:45:19,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:45:19,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:45:19,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:45:19,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:45:17" (1/3) ... [2023-12-15 22:45:19,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3583c176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:45:19, skipping insertion in model container [2023-12-15 22:45:19,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:45:18" (2/3) ... [2023-12-15 22:45:19,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3583c176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:45:19, skipping insertion in model container [2023-12-15 22:45:19,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:45:19" (3/3) ... [2023-12-15 22:45:19,465 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product18.cil.c [2023-12-15 22:45:19,477 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:45:19,477 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:45:19,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:45:19,516 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;@13844e8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:45:19,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:45:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 212 states have (on average 1.6037735849056605) internal successors, (340), 214 states have internal predecessors, (340), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-15 22:45:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:45:19,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:19,534 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:19,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:19,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:19,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2032787819, now seen corresponding path program 1 times [2023-12-15 22:45:19,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:19,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676879894] [2023-12-15 22:45:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:19,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:45:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:45:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:45:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:45:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:45:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:45:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:45:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:45:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:45:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:45:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:45:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:45:19,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:19,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676879894] [2023-12-15 22:45:19,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676879894] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:45:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779999103] [2023-12-15 22:45:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:19,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:19,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:19,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:45:20,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:45:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:45:20,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:45:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:45:20,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:45:20,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779999103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:20,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:45:20,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-15 22:45:20,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245904738] [2023-12-15 22:45:20,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:20,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:45:20,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:20,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:45:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:45:20,343 INFO L87 Difference]: Start difference. First operand has 273 states, 212 states have (on average 1.6037735849056605) internal successors, (340), 214 states have internal predecessors, (340), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:20,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:20,386 INFO L93 Difference]: Finished difference Result 401 states and 607 transitions. [2023-12-15 22:45:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:45:20,388 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 101 [2023-12-15 22:45:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:20,395 INFO L225 Difference]: With dead ends: 401 [2023-12-15 22:45:20,396 INFO L226 Difference]: Without dead ends: 270 [2023-12-15 22:45:20,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:45:20,400 INFO L413 NwaCegarLoop]: 405 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, 405 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 [2023-12-15 22:45:20,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:45:20,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-12-15 22:45:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2023-12-15 22:45:20,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 210 states have (on average 1.5857142857142856) internal successors, (333), 211 states have internal predecessors, (333), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-15 22:45:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 414 transitions. [2023-12-15 22:45:20,437 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 414 transitions. Word has length 101 [2023-12-15 22:45:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:20,438 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 414 transitions. [2023-12-15 22:45:20,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:20,438 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 414 transitions. [2023-12-15 22:45:20,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 22:45:20,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:20,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:20,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:45:20,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 22:45:20,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:20,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:20,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1978718919, now seen corresponding path program 1 times [2023-12-15 22:45:20,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:20,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543718272] [2023-12-15 22:45:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:45:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:45:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:45:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:45:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:45:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:45:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:45:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:45:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:45:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:45:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:45:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:45:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:20,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543718272] [2023-12-15 22:45:20,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543718272] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:45:20,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150299070] [2023-12-15 22:45:20,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:20,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:20,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:20,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:45:20,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:45:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:45:21,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:45:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:45:21,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:45:21,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150299070] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:21,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:45:21,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:45:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731296645] [2023-12-15 22:45:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:21,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:45:21,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:21,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:45:21,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:45:21,137 INFO L87 Difference]: Start difference. First operand 270 states and 414 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:21,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:21,179 INFO L93 Difference]: Finished difference Result 397 states and 594 transitions. [2023-12-15 22:45:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:45:21,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2023-12-15 22:45:21,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:21,181 INFO L225 Difference]: With dead ends: 397 [2023-12-15 22:45:21,181 INFO L226 Difference]: Without dead ends: 272 [2023-12-15 22:45:21,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:45:21,183 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 0 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 803 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 [2023-12-15 22:45:21,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 803 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:45:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-15 22:45:21,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-12-15 22:45:21,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 212 states have (on average 1.580188679245283) internal successors, (335), 213 states have internal predecessors, (335), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-15 22:45:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 416 transitions. [2023-12-15 22:45:21,195 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 416 transitions. Word has length 102 [2023-12-15 22:45:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:21,195 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 416 transitions. [2023-12-15 22:45:21,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 416 transitions. [2023-12-15 22:45:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 22:45:21,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:21,199 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:21,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:45:21,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 22:45:21,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:21,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:21,408 INFO L85 PathProgramCache]: Analyzing trace with hash 123062674, now seen corresponding path program 1 times [2023-12-15 22:45:21,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:21,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986708965] [2023-12-15 22:45:21,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:21,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:45:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:45:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:45:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:45:21,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:45:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:45:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:45:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:45:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:45:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:45:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:45:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:45:21,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:21,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986708965] [2023-12-15 22:45:21,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986708965] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:45:21,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118255829] [2023-12-15 22:45:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:21,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:21,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:21,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:45:21,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:45:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:21,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:45:21,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:45:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:45:21,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:45:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118255829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:21,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:45:21,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:45:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82263739] [2023-12-15 22:45:21,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:21,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:45:21,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:21,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:45:21,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:45:21,820 INFO L87 Difference]: Start difference. First operand 272 states and 416 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:21,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:21,860 INFO L93 Difference]: Finished difference Result 574 states and 891 transitions. [2023-12-15 22:45:21,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:45:21,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2023-12-15 22:45:21,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:21,863 INFO L225 Difference]: With dead ends: 574 [2023-12-15 22:45:21,863 INFO L226 Difference]: Without dead ends: 324 [2023-12-15 22:45:21,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:45:21,865 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 102 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:21,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 768 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:45:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-12-15 22:45:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 319. [2023-12-15 22:45:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 248 states have (on average 1.592741935483871) internal successors, (395), 249 states have internal predecessors, (395), 52 states have call successors, (52), 18 states have call predecessors, (52), 18 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-15 22:45:21,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 498 transitions. [2023-12-15 22:45:21,888 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 498 transitions. Word has length 109 [2023-12-15 22:45:21,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:21,888 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 498 transitions. [2023-12-15 22:45:21,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 498 transitions. [2023-12-15 22:45:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 22:45:21,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:21,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:21,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:45:22,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:22,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:22,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash 314138532, now seen corresponding path program 1 times [2023-12-15 22:45:22,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:22,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205315617] [2023-12-15 22:45:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:22,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:45:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:45:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:45:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:45:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:45:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:45:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:45:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:45:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:45:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:45:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:45:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:45:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:22,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205315617] [2023-12-15 22:45:22,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205315617] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:45:22,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378355717] [2023-12-15 22:45:22,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:22,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:22,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:22,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:45:22,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:45:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:45:22,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:45:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:45:22,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:45:22,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378355717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:22,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:45:22,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-15 22:45:22,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422956343] [2023-12-15 22:45:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:22,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:45:22,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:22,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:45:22,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:45:22,562 INFO L87 Difference]: Start difference. First operand 319 states and 498 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:22,631 INFO L93 Difference]: Finished difference Result 633 states and 990 transitions. [2023-12-15 22:45:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:45:22,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2023-12-15 22:45:22,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:22,634 INFO L225 Difference]: With dead ends: 633 [2023-12-15 22:45:22,635 INFO L226 Difference]: Without dead ends: 321 [2023-12-15 22:45:22,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:22,636 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 8 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:22,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1561 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:45:22,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-15 22:45:22,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-15 22:45:22,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 249 states have (on average 1.5903614457831325) internal successors, (396), 251 states have internal predecessors, (396), 52 states have call successors, (52), 18 states have call predecessors, (52), 19 states have return successors, (53), 51 states have call predecessors, (53), 51 states have call successors, (53) [2023-12-15 22:45:22,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 501 transitions. [2023-12-15 22:45:22,647 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 501 transitions. Word has length 110 [2023-12-15 22:45:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:22,648 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 501 transitions. [2023-12-15 22:45:22,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 501 transitions. [2023-12-15 22:45:22,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 22:45:22,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:22,650 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:22,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:45:22,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:22,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:22,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:22,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1035768482, now seen corresponding path program 1 times [2023-12-15 22:45:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391105312] [2023-12-15 22:45:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:45:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:45:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:45:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:45:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:45:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:22,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:45:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:45:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:45:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:45:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:45:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,005 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:45:23,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:23,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391105312] [2023-12-15 22:45:23,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391105312] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:45:23,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925657633] [2023-12-15 22:45:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:23,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:23,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:23,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:45:23,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:45:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:45:23,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:45:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:45:23,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:45:23,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925657633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:23,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:45:23,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-15 22:45:23,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472444963] [2023-12-15 22:45:23,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:23,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:45:23,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:23,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:45:23,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:45:23,300 INFO L87 Difference]: Start difference. First operand 321 states and 501 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:23,366 INFO L93 Difference]: Finished difference Result 635 states and 995 transitions. [2023-12-15 22:45:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:45:23,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2023-12-15 22:45:23,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:23,368 INFO L225 Difference]: With dead ends: 635 [2023-12-15 22:45:23,368 INFO L226 Difference]: Without dead ends: 323 [2023-12-15 22:45:23,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:45:23,369 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 8 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1547 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 [2023-12-15 22:45:23,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1547 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:45:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-12-15 22:45:23,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2023-12-15 22:45:23,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 250 states have (on average 1.588) internal successors, (397), 253 states have internal predecessors, (397), 52 states have call successors, (52), 18 states have call predecessors, (52), 20 states have return successors, (58), 51 states have call predecessors, (58), 51 states have call successors, (58) [2023-12-15 22:45:23,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 507 transitions. [2023-12-15 22:45:23,378 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 507 transitions. Word has length 111 [2023-12-15 22:45:23,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:23,378 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 507 transitions. [2023-12-15 22:45:23,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:23,379 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 507 transitions. [2023-12-15 22:45:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-15 22:45:23,380 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:23,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:23,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:45:23,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:23,587 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:23,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1408864116, now seen corresponding path program 1 times [2023-12-15 22:45:23,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:23,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56108445] [2023-12-15 22:45:23,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:23,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:45:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:45:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:45:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:45:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:45:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:45:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:45:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:45:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:45:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:45:23,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:23,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56108445] [2023-12-15 22:45:23,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56108445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:23,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:23,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:45:23,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422818972] [2023-12-15 22:45:23,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:23,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:45:23,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:23,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:45:23,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:45:23,769 INFO L87 Difference]: Start difference. First operand 323 states and 507 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:25,047 INFO L93 Difference]: Finished difference Result 702 states and 1112 transitions. [2023-12-15 22:45:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:45:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2023-12-15 22:45:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:25,049 INFO L225 Difference]: With dead ends: 702 [2023-12-15 22:45:25,049 INFO L226 Difference]: Without dead ends: 398 [2023-12-15 22:45:25,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:45:25,051 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 881 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:25,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 962 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 22:45:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-12-15 22:45:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 323. [2023-12-15 22:45:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 250 states have (on average 1.588) internal successors, (397), 253 states have internal predecessors, (397), 52 states have call successors, (52), 18 states have call predecessors, (52), 20 states have return successors, (57), 51 states have call predecessors, (57), 51 states have call successors, (57) [2023-12-15 22:45:25,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 506 transitions. [2023-12-15 22:45:25,097 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 506 transitions. Word has length 112 [2023-12-15 22:45:25,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:25,097 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 506 transitions. [2023-12-15 22:45:25,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 506 transitions. [2023-12-15 22:45:25,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 22:45:25,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:25,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:25,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:45:25,099 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:25,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash -885901420, now seen corresponding path program 2 times [2023-12-15 22:45:25,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:25,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063122157] [2023-12-15 22:45:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:25,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:45:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:45:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:45:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:45:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:45:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:45:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:45:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:45:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:45:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:45:25,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063122157] [2023-12-15 22:45:25,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063122157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:25,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:25,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:45:25,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476913079] [2023-12-15 22:45:25,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:25,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:45:25,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:25,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:45:25,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:45:25,263 INFO L87 Difference]: Start difference. First operand 323 states and 506 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:26,533 INFO L93 Difference]: Finished difference Result 704 states and 1115 transitions. [2023-12-15 22:45:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:45:26,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2023-12-15 22:45:26,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:26,535 INFO L225 Difference]: With dead ends: 704 [2023-12-15 22:45:26,535 INFO L226 Difference]: Without dead ends: 400 [2023-12-15 22:45:26,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:45:26,537 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 875 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:26,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 963 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 22:45:26,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-12-15 22:45:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 325. [2023-12-15 22:45:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 251 states have (on average 1.5856573705179282) internal successors, (398), 255 states have internal predecessors, (398), 52 states have call successors, (52), 18 states have call predecessors, (52), 21 states have return successors, (59), 51 states have call predecessors, (59), 51 states have call successors, (59) [2023-12-15 22:45:26,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 509 transitions. [2023-12-15 22:45:26,561 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 509 transitions. Word has length 113 [2023-12-15 22:45:26,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:26,561 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 509 transitions. [2023-12-15 22:45:26,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-15 22:45:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 509 transitions. [2023-12-15 22:45:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-15 22:45:26,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:26,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:26,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:45:26,563 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:26,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:26,563 INFO L85 PathProgramCache]: Analyzing trace with hash 612738575, now seen corresponding path program 1 times [2023-12-15 22:45:26,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:26,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721110465] [2023-12-15 22:45:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:26,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:45:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:45:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:45:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:45:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:45:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:45:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:45:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:45:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:26,756 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:45:26,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721110465] [2023-12-15 22:45:26,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721110465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:26,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:26,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:45:26,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594850078] [2023-12-15 22:45:26,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:26,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:45:26,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:26,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:45:26,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:45:26,758 INFO L87 Difference]: Start difference. First operand 325 states and 509 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-15 22:45:28,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:28,291 INFO L93 Difference]: Finished difference Result 702 states and 1110 transitions. [2023-12-15 22:45:28,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:45:28,292 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 114 [2023-12-15 22:45:28,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:28,294 INFO L225 Difference]: With dead ends: 702 [2023-12-15 22:45:28,294 INFO L226 Difference]: Without dead ends: 400 [2023-12-15 22:45:28,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:45:28,295 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 885 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:28,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 1332 Invalid, 3282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:45:28,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2023-12-15 22:45:28,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 325. [2023-12-15 22:45:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 251 states have (on average 1.5856573705179282) internal successors, (398), 255 states have internal predecessors, (398), 52 states have call successors, (52), 18 states have call predecessors, (52), 21 states have return successors, (58), 51 states have call predecessors, (58), 51 states have call successors, (58) [2023-12-15 22:45:28,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 508 transitions. [2023-12-15 22:45:28,312 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 508 transitions. Word has length 114 [2023-12-15 22:45:28,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:28,314 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 508 transitions. [2023-12-15 22:45:28,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-15 22:45:28,314 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 508 transitions. [2023-12-15 22:45:28,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 22:45:28,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:28,317 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:28,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:45:28,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:28,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:28,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1255967443, now seen corresponding path program 2 times [2023-12-15 22:45:28,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:28,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237214174] [2023-12-15 22:45:28,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:28,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:45:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:45:28,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:45:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:45:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:45:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:45:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:45:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:45:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:45:28,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237214174] [2023-12-15 22:45:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237214174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:28,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:28,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:45:28,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575404149] [2023-12-15 22:45:28,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:28,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:45:28,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:28,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:45:28,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:45:28,524 INFO L87 Difference]: Start difference. First operand 325 states and 508 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-15 22:45:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:30,286 INFO L93 Difference]: Finished difference Result 704 states and 1116 transitions. [2023-12-15 22:45:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:45:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2023-12-15 22:45:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:30,289 INFO L225 Difference]: With dead ends: 704 [2023-12-15 22:45:30,289 INFO L226 Difference]: Without dead ends: 402 [2023-12-15 22:45:30,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:45:30,290 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 880 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 3307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 3065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:30,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1332 Invalid, 3307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 22:45:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-12-15 22:45:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 327. [2023-12-15 22:45:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 252 states have (on average 1.5833333333333333) internal successors, (399), 257 states have internal predecessors, (399), 52 states have call successors, (52), 18 states have call predecessors, (52), 22 states have return successors, (63), 51 states have call predecessors, (63), 51 states have call successors, (63) [2023-12-15 22:45:30,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 514 transitions. [2023-12-15 22:45:30,310 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 514 transitions. Word has length 115 [2023-12-15 22:45:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:30,310 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 514 transitions. [2023-12-15 22:45:30,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-15 22:45:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 514 transitions. [2023-12-15 22:45:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-15 22:45:30,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:30,312 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:30,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:45:30,312 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:30,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:30,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2102170454, now seen corresponding path program 1 times [2023-12-15 22:45:30,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:30,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111761247] [2023-12-15 22:45:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:30,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:45:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:45:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:45:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:45:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:45:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:45:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:45:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:45:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-15 22:45:30,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:30,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111761247] [2023-12-15 22:45:30,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111761247] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:45:30,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297498064] [2023-12-15 22:45:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:30,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:30,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:45:30,510 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:45:30,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:45:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:30,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:45:30,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:45:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:30,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:45:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:30,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297498064] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:45:30,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:45:30,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-15 22:45:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963452125] [2023-12-15 22:45:30,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:45:30,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 22:45:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:30,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 22:45:30,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:45:30,860 INFO L87 Difference]: Start difference. First operand 327 states and 514 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-15 22:45:32,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:32,873 INFO L93 Difference]: Finished difference Result 1033 states and 1727 transitions. [2023-12-15 22:45:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-15 22:45:32,874 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 116 [2023-12-15 22:45:32,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:32,877 INFO L225 Difference]: With dead ends: 1033 [2023-12-15 22:45:32,877 INFO L226 Difference]: Without dead ends: 732 [2023-12-15 22:45:32,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-15 22:45:32,878 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1821 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 3767 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 1555 SdHoareTripleChecker+Invalid, 4309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 3767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:32,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 1555 Invalid, 4309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 3767 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 22:45:32,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-12-15 22:45:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 642. [2023-12-15 22:45:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 503 states have (on average 1.6242544731610338) internal successors, (817), 508 states have internal predecessors, (817), 116 states have call successors, (116), 18 states have call predecessors, (116), 22 states have return successors, (137), 115 states have call predecessors, (137), 115 states have call successors, (137) [2023-12-15 22:45:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 1070 transitions. [2023-12-15 22:45:32,905 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 1070 transitions. Word has length 116 [2023-12-15 22:45:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:32,906 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 1070 transitions. [2023-12-15 22:45:32,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-15 22:45:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 1070 transitions. [2023-12-15 22:45:32,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-15 22:45:32,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:32,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:32,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:45:33,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:45:33,115 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:33,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:33,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2090395548, now seen corresponding path program 1 times [2023-12-15 22:45:33,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:33,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670982220] [2023-12-15 22:45:33,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:33,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:45:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:45:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:45:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:45:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:45:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:45:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:45:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:45:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:33,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:33,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670982220] [2023-12-15 22:45:33,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670982220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:33,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:33,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:33,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715093156] [2023-12-15 22:45:33,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:33,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:33,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:33,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:33,196 INFO L87 Difference]: Start difference. First operand 642 states and 1070 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:34,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:34,239 INFO L93 Difference]: Finished difference Result 1588 states and 2716 transitions. [2023-12-15 22:45:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-12-15 22:45:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:34,246 INFO L225 Difference]: With dead ends: 1588 [2023-12-15 22:45:34,247 INFO L226 Difference]: Without dead ends: 1014 [2023-12-15 22:45:34,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:34,262 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 968 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:34,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 750 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:45:34,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2023-12-15 22:45:34,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 934. [2023-12-15 22:45:34,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 731 states have (on average 1.6333789329685362) internal successors, (1194), 736 states have internal predecessors, (1194), 180 states have call successors, (180), 18 states have call predecessors, (180), 22 states have return successors, (211), 179 states have call predecessors, (211), 179 states have call successors, (211) [2023-12-15 22:45:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1585 transitions. [2023-12-15 22:45:34,321 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1585 transitions. Word has length 120 [2023-12-15 22:45:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:34,322 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1585 transitions. [2023-12-15 22:45:34,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1585 transitions. [2023-12-15 22:45:34,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-15 22:45:34,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:34,326 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:34,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:45:34,326 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:34,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:34,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1951047195, now seen corresponding path program 1 times [2023-12-15 22:45:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:34,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546878028] [2023-12-15 22:45:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:34,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:45:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:45:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:45:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:45:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:45:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:45:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:45:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:45:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:34,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:34,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546878028] [2023-12-15 22:45:34,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546878028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:34,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:34,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:34,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025199483] [2023-12-15 22:45:34,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:34,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:34,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:34,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:34,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:34,486 INFO L87 Difference]: Start difference. First operand 934 states and 1585 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:35,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:35,180 INFO L93 Difference]: Finished difference Result 2305 states and 3973 transitions. [2023-12-15 22:45:35,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:35,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2023-12-15 22:45:35,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:35,203 INFO L225 Difference]: With dead ends: 2305 [2023-12-15 22:45:35,203 INFO L226 Difference]: Without dead ends: 1489 [2023-12-15 22:45:35,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:35,206 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 966 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:35,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 703 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 22:45:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2023-12-15 22:45:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1409. [2023-12-15 22:45:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1111 states have (on average 1.6363636363636365) internal successors, (1818), 1116 states have internal predecessors, (1818), 275 states have call successors, (275), 18 states have call predecessors, (275), 22 states have return successors, (306), 274 states have call predecessors, (306), 274 states have call successors, (306) [2023-12-15 22:45:35,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2399 transitions. [2023-12-15 22:45:35,256 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2399 transitions. Word has length 121 [2023-12-15 22:45:35,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:35,256 INFO L495 AbstractCegarLoop]: Abstraction has 1409 states and 2399 transitions. [2023-12-15 22:45:35,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2399 transitions. [2023-12-15 22:45:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 22:45:35,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:35,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:35,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:45:35,262 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:35,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash 514118638, now seen corresponding path program 1 times [2023-12-15 22:45:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:35,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639990891] [2023-12-15 22:45:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:45:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:45:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:45:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:45:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:45:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:45:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:45:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:45:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:35,333 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:35,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:35,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639990891] [2023-12-15 22:45:35,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639990891] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:35,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:35,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:35,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678291100] [2023-12-15 22:45:35,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:35,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:35,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:35,335 INFO L87 Difference]: Start difference. First operand 1409 states and 2399 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:36,116 INFO L93 Difference]: Finished difference Result 3367 states and 5851 transitions. [2023-12-15 22:45:36,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:36,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 122 [2023-12-15 22:45:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:36,129 INFO L225 Difference]: With dead ends: 3367 [2023-12-15 22:45:36,129 INFO L226 Difference]: Without dead ends: 2204 [2023-12-15 22:45:36,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:36,135 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 965 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:36,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 701 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 22:45:36,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2023-12-15 22:45:36,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2124. [2023-12-15 22:45:36,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 1703 states have (on average 1.639459776864357) internal successors, (2792), 1708 states have internal predecessors, (2792), 398 states have call successors, (398), 18 states have call predecessors, (398), 22 states have return successors, (445), 397 states have call predecessors, (445), 397 states have call successors, (445) [2023-12-15 22:45:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 3635 transitions. [2023-12-15 22:45:36,208 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 3635 transitions. Word has length 122 [2023-12-15 22:45:36,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:36,208 INFO L495 AbstractCegarLoop]: Abstraction has 2124 states and 3635 transitions. [2023-12-15 22:45:36,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 3635 transitions. [2023-12-15 22:45:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-15 22:45:36,216 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:36,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:36,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:45:36,216 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:36,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash -464002310, now seen corresponding path program 1 times [2023-12-15 22:45:36,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:36,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561319878] [2023-12-15 22:45:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:36,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:45:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:45:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:45:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:45:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:45:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:45:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:45:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:45:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:36,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:36,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561319878] [2023-12-15 22:45:36,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561319878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:36,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:36,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252679920] [2023-12-15 22:45:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:36,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:36,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:36,295 INFO L87 Difference]: Start difference. First operand 2124 states and 3635 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:37,140 INFO L93 Difference]: Finished difference Result 5009 states and 8764 transitions. [2023-12-15 22:45:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:37,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2023-12-15 22:45:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:37,153 INFO L225 Difference]: With dead ends: 5009 [2023-12-15 22:45:37,154 INFO L226 Difference]: Without dead ends: 3340 [2023-12-15 22:45:37,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:37,158 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 962 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:37,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 704 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:45:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2023-12-15 22:45:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3260. [2023-12-15 22:45:37,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3260 states, 2660 states have (on average 1.6413533834586467) internal successors, (4366), 2665 states have internal predecessors, (4366), 577 states have call successors, (577), 18 states have call predecessors, (577), 22 states have return successors, (650), 576 states have call predecessors, (650), 576 states have call successors, (650) [2023-12-15 22:45:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3260 states to 3260 states and 5593 transitions. [2023-12-15 22:45:37,263 INFO L78 Accepts]: Start accepts. Automaton has 3260 states and 5593 transitions. Word has length 123 [2023-12-15 22:45:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:37,263 INFO L495 AbstractCegarLoop]: Abstraction has 3260 states and 5593 transitions. [2023-12-15 22:45:37,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:37,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3260 states and 5593 transitions. [2023-12-15 22:45:37,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 22:45:37,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:37,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:37,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:45:37,273 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:37,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash -73893678, now seen corresponding path program 1 times [2023-12-15 22:45:37,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792436888] [2023-12-15 22:45:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:45:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:45:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:45:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:45:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:45:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:45:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:45:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:45:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:37,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:37,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792436888] [2023-12-15 22:45:37,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792436888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:37,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:37,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:37,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241347093] [2023-12-15 22:45:37,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:37,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:37,356 INFO L87 Difference]: Start difference. First operand 3260 states and 5593 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:38,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:38,343 INFO L93 Difference]: Finished difference Result 7964 states and 13962 transitions. [2023-12-15 22:45:38,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:38,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 124 [2023-12-15 22:45:38,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:38,366 INFO L225 Difference]: With dead ends: 7964 [2023-12-15 22:45:38,366 INFO L226 Difference]: Without dead ends: 5398 [2023-12-15 22:45:38,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:38,376 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 960 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:38,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 746 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:45:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2023-12-15 22:45:38,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 5318. [2023-12-15 22:45:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5318 states, 4342 states have (on average 1.6326577614002764) internal successors, (7089), 4347 states have internal predecessors, (7089), 953 states have call successors, (953), 18 states have call predecessors, (953), 22 states have return successors, (1070), 952 states have call predecessors, (1070), 952 states have call successors, (1070) [2023-12-15 22:45:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 9112 transitions. [2023-12-15 22:45:38,563 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 9112 transitions. Word has length 124 [2023-12-15 22:45:38,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:38,563 INFO L495 AbstractCegarLoop]: Abstraction has 5318 states and 9112 transitions. [2023-12-15 22:45:38,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 9112 transitions. [2023-12-15 22:45:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-15 22:45:38,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:38,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:38,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:45:38,619 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:38,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:38,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1398743530, now seen corresponding path program 1 times [2023-12-15 22:45:38,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:38,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854916396] [2023-12-15 22:45:38,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:38,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:45:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:45:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:45:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:45:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:45:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:45:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:45:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:45:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:38,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:38,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854916396] [2023-12-15 22:45:38,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854916396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:38,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:38,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:38,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896155840] [2023-12-15 22:45:38,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:38,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:38,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:38,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:38,702 INFO L87 Difference]: Start difference. First operand 5318 states and 9112 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:39,736 INFO L93 Difference]: Finished difference Result 13169 states and 23046 transitions. [2023-12-15 22:45:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:39,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 125 [2023-12-15 22:45:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:39,831 INFO L225 Difference]: With dead ends: 13169 [2023-12-15 22:45:39,831 INFO L226 Difference]: Without dead ends: 8931 [2023-12-15 22:45:39,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:39,840 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 959 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:39,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 705 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:45:39,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8931 states. [2023-12-15 22:45:40,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8931 to 8851. [2023-12-15 22:45:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8851 states, 7269 states have (on average 1.629660200852937) internal successors, (11846), 7274 states have internal predecessors, (11846), 1559 states have call successors, (1559), 18 states have call predecessors, (1559), 22 states have return successors, (1754), 1558 states have call predecessors, (1754), 1558 states have call successors, (1754) [2023-12-15 22:45:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8851 states to 8851 states and 15159 transitions. [2023-12-15 22:45:40,099 INFO L78 Accepts]: Start accepts. Automaton has 8851 states and 15159 transitions. Word has length 125 [2023-12-15 22:45:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:40,099 INFO L495 AbstractCegarLoop]: Abstraction has 8851 states and 15159 transitions. [2023-12-15 22:45:40,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8851 states and 15159 transitions. [2023-12-15 22:45:40,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 22:45:40,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:40,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:40,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:45:40,120 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:40,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1525616816, now seen corresponding path program 1 times [2023-12-15 22:45:40,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:40,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502458999] [2023-12-15 22:45:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:40,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:45:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:45:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:45:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:45:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:45:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:45:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:45:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 22:45:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:40,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:40,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502458999] [2023-12-15 22:45:40,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502458999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:40,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:40,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:40,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303472728] [2023-12-15 22:45:40,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:40,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:40,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:40,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:40,205 INFO L87 Difference]: Start difference. First operand 8851 states and 15159 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:41,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:41,447 INFO L93 Difference]: Finished difference Result 22941 states and 40075 transitions. [2023-12-15 22:45:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-15 22:45:41,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:41,493 INFO L225 Difference]: With dead ends: 22941 [2023-12-15 22:45:41,493 INFO L226 Difference]: Without dead ends: 15603 [2023-12-15 22:45:41,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:41,516 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 956 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:41,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 761 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:45:41,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15603 states. [2023-12-15 22:45:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15603 to 15523. [2023-12-15 22:45:41,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15523 states, 12738 states have (on average 1.6199560370544825) internal successors, (20635), 12743 states have internal predecessors, (20635), 2762 states have call successors, (2762), 18 states have call predecessors, (2762), 22 states have return successors, (3101), 2761 states have call predecessors, (3101), 2761 states have call successors, (3101) [2023-12-15 22:45:41,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15523 states to 15523 states and 26498 transitions. [2023-12-15 22:45:41,995 INFO L78 Accepts]: Start accepts. Automaton has 15523 states and 26498 transitions. Word has length 126 [2023-12-15 22:45:41,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:41,995 INFO L495 AbstractCegarLoop]: Abstraction has 15523 states and 26498 transitions. [2023-12-15 22:45:41,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 15523 states and 26498 transitions. [2023-12-15 22:45:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-15 22:45:42,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:42,028 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:42,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:45:42,028 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:42,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:42,028 INFO L85 PathProgramCache]: Analyzing trace with hash -220409003, now seen corresponding path program 1 times [2023-12-15 22:45:42,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:42,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282138416] [2023-12-15 22:45:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:42,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:45:42,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:45:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:45:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:45:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:45:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:45:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:45:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 22:45:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:42,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282138416] [2023-12-15 22:45:42,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282138416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:42,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:42,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490645106] [2023-12-15 22:45:42,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:42,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:42,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:42,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:42,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:42,106 INFO L87 Difference]: Start difference. First operand 15523 states and 26498 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:43,504 INFO L93 Difference]: Finished difference Result 41108 states and 71673 transitions. [2023-12-15 22:45:43,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:43,504 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2023-12-15 22:45:43,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:43,579 INFO L225 Difference]: With dead ends: 41108 [2023-12-15 22:45:43,579 INFO L226 Difference]: Without dead ends: 27718 [2023-12-15 22:45:43,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:43,605 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 954 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:43,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 703 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 22:45:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27718 states. [2023-12-15 22:45:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27718 to 27638. [2023-12-15 22:45:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27638 states, 22814 states have (on average 1.615762251249233) internal successors, (36862), 22819 states have internal predecessors, (36862), 4801 states have call successors, (4801), 18 states have call predecessors, (4801), 22 states have return successors, (5414), 4800 states have call predecessors, (5414), 4800 states have call successors, (5414) [2023-12-15 22:45:44,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27638 states to 27638 states and 47077 transitions. [2023-12-15 22:45:44,727 INFO L78 Accepts]: Start accepts. Automaton has 27638 states and 47077 transitions. Word has length 127 [2023-12-15 22:45:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:44,727 INFO L495 AbstractCegarLoop]: Abstraction has 27638 states and 47077 transitions. [2023-12-15 22:45:44,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 27638 states and 47077 transitions. [2023-12-15 22:45:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-15 22:45:44,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:44,759 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:44,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:45:44,760 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:44,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:44,760 INFO L85 PathProgramCache]: Analyzing trace with hash 885101614, now seen corresponding path program 1 times [2023-12-15 22:45:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:44,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626659281] [2023-12-15 22:45:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:44,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:45:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:45:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:45:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:45:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:45:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:45:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:45:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:45:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:44,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:44,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626659281] [2023-12-15 22:45:44,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626659281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:44,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:44,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:44,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939010030] [2023-12-15 22:45:44,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:44,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:44,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:44,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:44,841 INFO L87 Difference]: Start difference. First operand 27638 states and 47077 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:46,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:46,904 INFO L93 Difference]: Finished difference Result 75300 states and 130467 transitions. [2023-12-15 22:45:46,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:46,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-15 22:45:46,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:47,060 INFO L225 Difference]: With dead ends: 75300 [2023-12-15 22:45:47,060 INFO L226 Difference]: Without dead ends: 50542 [2023-12-15 22:45:47,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:47,103 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 952 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:47,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 703 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:45:47,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50542 states. [2023-12-15 22:45:48,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50542 to 50462. [2023-12-15 22:45:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50462 states, 41923 states have (on average 1.6103332299692292) internal successors, (67510), 41928 states have internal predecessors, (67510), 8516 states have call successors, (8516), 18 states have call predecessors, (8516), 22 states have return successors, (9661), 8515 states have call predecessors, (9661), 8515 states have call successors, (9661) [2023-12-15 22:45:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50462 states to 50462 states and 85687 transitions. [2023-12-15 22:45:49,317 INFO L78 Accepts]: Start accepts. Automaton has 50462 states and 85687 transitions. Word has length 128 [2023-12-15 22:45:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:49,318 INFO L495 AbstractCegarLoop]: Abstraction has 50462 states and 85687 transitions. [2023-12-15 22:45:49,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:49,318 INFO L276 IsEmpty]: Start isEmpty. Operand 50462 states and 85687 transitions. [2023-12-15 22:45:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-15 22:45:49,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:49,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:49,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:45:49,354 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:49,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:49,354 INFO L85 PathProgramCache]: Analyzing trace with hash -93750251, now seen corresponding path program 1 times [2023-12-15 22:45:49,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:49,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242276271] [2023-12-15 22:45:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:49,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:45:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:45:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:45:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:45:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:45:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:45:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:45:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:45:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:49,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:49,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242276271] [2023-12-15 22:45:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242276271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:49,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:49,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:45:49,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289008379] [2023-12-15 22:45:49,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:49,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:45:49,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:45:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:45:49,425 INFO L87 Difference]: Start difference. First operand 50462 states and 85687 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:52,094 INFO L93 Difference]: Finished difference Result 94047 states and 163373 transitions. [2023-12-15 22:45:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:45:52,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-12-15 22:45:52,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:52,411 INFO L225 Difference]: With dead ends: 94047 [2023-12-15 22:45:52,411 INFO L226 Difference]: Without dead ends: 93922 [2023-12-15 22:45:52,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:45:52,453 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 950 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:52,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 705 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:45:52,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93922 states. [2023-12-15 22:45:55,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93922 to 93842. [2023-12-15 22:45:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93842 states, 78504 states have (on average 1.6034596963212067) internal successors, (125878), 78509 states have internal predecessors, (125878), 15315 states have call successors, (15315), 18 states have call predecessors, (15315), 22 states have return successors, (17506), 15314 states have call predecessors, (17506), 15314 states have call successors, (17506) [2023-12-15 22:45:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93842 states to 93842 states and 158699 transitions. [2023-12-15 22:45:56,049 INFO L78 Accepts]: Start accepts. Automaton has 93842 states and 158699 transitions. Word has length 129 [2023-12-15 22:45:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:45:56,049 INFO L495 AbstractCegarLoop]: Abstraction has 93842 states and 158699 transitions. [2023-12-15 22:45:56,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 93842 states and 158699 transitions. [2023-12-15 22:45:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 22:45:56,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:45:56,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:45:56,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:45:56,088 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:45:56,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:45:56,088 INFO L85 PathProgramCache]: Analyzing trace with hash -621721745, now seen corresponding path program 1 times [2023-12-15 22:45:56,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:45:56,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23466351] [2023-12-15 22:45:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:45:56,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:45:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:45:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:45:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:45:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:45:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:45:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:45:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:45:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:45:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:45:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:45:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:45:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:45:56,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:45:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:45:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:45:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:45:56,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:45:56,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23466351] [2023-12-15 22:45:56,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23466351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:45:56,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:45:56,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:45:56,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74899322] [2023-12-15 22:45:56,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:45:56,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:45:56,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:45:56,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:45:56,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:45:56,379 INFO L87 Difference]: Start difference. First operand 93842 states and 158699 transitions. Second operand has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:45:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:45:59,060 INFO L93 Difference]: Finished difference Result 94035 states and 162266 transitions. [2023-12-15 22:45:59,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 22:45:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2023-12-15 22:45:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:45:59,643 INFO L225 Difference]: With dead ends: 94035 [2023-12-15 22:45:59,643 INFO L226 Difference]: Without dead ends: 93917 [2023-12-15 22:45:59,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:45:59,675 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 998 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:45:59,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1019 Valid, 983 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:45:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93917 states. [2023-12-15 22:46:02,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93917 to 93842. [2023-12-15 22:46:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93842 states, 78504 states have (on average 1.6034469581167838) internal successors, (125877), 78509 states have internal predecessors, (125877), 15315 states have call successors, (15315), 18 states have call predecessors, (15315), 22 states have return successors, (17506), 15314 states have call predecessors, (17506), 15314 states have call successors, (17506) [2023-12-15 22:46:02,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93842 states to 93842 states and 158698 transitions. [2023-12-15 22:46:02,913 INFO L78 Accepts]: Start accepts. Automaton has 93842 states and 158698 transitions. Word has length 130 [2023-12-15 22:46:02,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:02,913 INFO L495 AbstractCegarLoop]: Abstraction has 93842 states and 158698 transitions. [2023-12-15 22:46:02,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.666666666666666) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-15 22:46:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 93842 states and 158698 transitions. [2023-12-15 22:46:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-15 22:46:03,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:03,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:03,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:46:03,303 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:03,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1566627093, now seen corresponding path program 1 times [2023-12-15 22:46:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:03,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659764664] [2023-12-15 22:46:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:46:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:46:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:46:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:46:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:46:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:46:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:46:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:46:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 22:46:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:46:03,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:03,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659764664] [2023-12-15 22:46:03,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659764664] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:03,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:03,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:46:03,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889902572] [2023-12-15 22:46:03,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:03,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:46:03,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:03,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:46:03,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:46:03,511 INFO L87 Difference]: Start difference. First operand 93842 states and 158698 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-15 22:46:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:07,432 INFO L93 Difference]: Finished difference Result 94227 states and 162544 transitions. [2023-12-15 22:46:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-15 22:46:07,432 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2023-12-15 22:46:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:07,752 INFO L225 Difference]: With dead ends: 94227 [2023-12-15 22:46:07,752 INFO L226 Difference]: Without dead ends: 94109 [2023-12-15 22:46:07,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2023-12-15 22:46:07,785 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1672 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 2429 mSolverCounterSat, 359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1686 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 2429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:07,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1686 Valid, 948 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 2429 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 22:46:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94109 states. [2023-12-15 22:46:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94109 to 93962. [2023-12-15 22:46:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93962 states, 78599 states have (on average 1.6033155638112444) internal successors, (126019), 78604 states have internal predecessors, (126019), 15328 states have call successors, (15328), 28 states have call predecessors, (15328), 34 states have return successors, (17521), 15329 states have call predecessors, (17521), 15326 states have call successors, (17521) [2023-12-15 22:46:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93962 states to 93962 states and 158868 transitions. [2023-12-15 22:46:10,992 INFO L78 Accepts]: Start accepts. Automaton has 93962 states and 158868 transitions. Word has length 137 [2023-12-15 22:46:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:10,992 INFO L495 AbstractCegarLoop]: Abstraction has 93962 states and 158868 transitions. [2023-12-15 22:46:10,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-15 22:46:10,992 INFO L276 IsEmpty]: Start isEmpty. Operand 93962 states and 158868 transitions. [2023-12-15 22:46:11,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-15 22:46:11,048 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:11,048 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:11,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-15 22:46:11,048 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:11,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:11,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1923924244, now seen corresponding path program 1 times [2023-12-15 22:46:11,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:11,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078588974] [2023-12-15 22:46:11,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:11,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:46:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:46:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:46:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:46:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:46:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:46:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:46:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:46:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:46:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:46:11,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:11,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078588974] [2023-12-15 22:46:11,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078588974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:11,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:11,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-15 22:46:11,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552360452] [2023-12-15 22:46:11,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:11,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-15 22:46:11,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-15 22:46:11,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:46:11,856 INFO L87 Difference]: Start difference. First operand 93962 states and 158868 transitions. Second operand has 16 states, 14 states have (on average 6.642857142857143) internal successors, (93), 11 states have internal predecessors, (93), 8 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Received shutdown request... [2023-12-15 22:46:12,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 22:46:12,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=631, Unknown=0, NotChecked=0, Total=756 [2023-12-15 22:46:12,748 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 350 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 1534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:12,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1551 Invalid, 1534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 22:46:12,749 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:46:12,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-15 22:46:12,750 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (93962states) and FLOYD_HOARE automaton (currently 14 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (568 states constructed, input type IntersectNwa). [2023-12-15 22:46:12,753 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, 1] [2023-12-15 22:46:12,754 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:46:12,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:46:12 BoogieIcfgContainer [2023-12-15 22:46:12,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:46:12,756 INFO L158 Benchmark]: Toolchain (without parser) took 54982.35ms. Allocated memory was 208.7MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 151.9MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-15 22:46:12,756 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:46:12,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.54ms. Allocated memory was 208.7MB in the beginning and 288.4MB in the end (delta: 79.7MB). Free memory was 151.8MB in the beginning and 243.7MB in the end (delta: -91.9MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. [2023-12-15 22:46:12,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.66ms. Allocated memory is still 288.4MB. Free memory was 243.7MB in the beginning and 238.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 22:46:12,756 INFO L158 Benchmark]: Boogie Preprocessor took 94.48ms. Allocated memory is still 288.4MB. Free memory was 238.4MB in the beginning and 232.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:46:12,756 INFO L158 Benchmark]: RCFGBuilder took 865.92ms. Allocated memory is still 288.4MB. Free memory was 232.1MB in the beginning and 169.2MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-15 22:46:12,757 INFO L158 Benchmark]: TraceAbstraction took 53294.66ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 168.2MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 22:46:12,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- [2023-12-15 22:46:12,764 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 160.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 628.54ms. Allocated memory was 208.7MB in the beginning and 288.4MB in the end (delta: 79.7MB). Free memory was 151.8MB in the beginning and 243.7MB in the end (delta: -91.9MB). Peak memory consumption was 37.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 92.66ms. Allocated memory is still 288.4MB. Free memory was 243.7MB in the beginning and 238.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 94.48ms. Allocated memory is still 288.4MB. Free memory was 238.4MB in the beginning and 232.6MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 865.92ms. Allocated memory is still 288.4MB. Free memory was 232.1MB in the beginning and 169.2MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 53294.66ms. Allocated memory was 288.4MB in the beginning and 7.2GB in the end (delta: 6.9GB). Free memory was 168.2MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.6GB. 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,"Test.i","") [48] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [363] - GenericResultAtLocation [Line: 729]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [729] - GenericResultAtLocation [Line: 1801]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1801] - GenericResultAtLocation [Line: 1908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1908] - GenericResultAtLocation [Line: 1925]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1925] - GenericResultAtLocation [Line: 2329]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2329] - GenericResultAtLocation [Line: 2545]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2545] - GenericResultAtLocation [Line: 2831]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2831] - GenericResultAtLocation [Line: 2863]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2863] - GenericResultAtLocation [Line: 2898]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2898] * 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: 2903]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2903). Cancelled while NwaCegarLoop was constructing difference of abstraction (93962states) and FLOYD_HOARE automaton (currently 14 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (568 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 273 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.3s, OverallIterations: 23, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 30.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18295 SdHoareTripleChecker+Valid, 17.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18072 mSDsluCounter, 21891 SdHoareTripleChecker+Invalid, 14.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17030 mSDsCounter, 5145 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30176 IncrementalHoareTripleChecker+Invalid, 35321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5145 mSolverCounterUnsat, 4861 mSDtfsCounter, 30176 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1753 GetRequests, 1420 SyntacticMatches, 0 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93962occurred in iteration=22, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.8s AutomataMinimizationTime, 22 MinimizatonAttempts, 1417 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3402 NumberOfCodeBlocks, 3402 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 3488 ConstructedInterpolants, 0 QuantifiedInterpolants, 5869 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6225 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 30 InterpolantComputations, 22 PerfectInterpolantSequences, 876/902 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