/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 09:27:35,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 09:27:35,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 09:27:35,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 09:27:35,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 09:27:35,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 09:27:35,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 09:27:35,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 09:27:35,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 09:27:35,654 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 09:27:35,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 09:27:35,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 09:27:35,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 09:27:35,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 09:27:35,656 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 09:27:35,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 09:27:35,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 09:27:35,657 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 09:27:35,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 09:27:35,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 09:27:35,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 09:27:35,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 09:27:35,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 09:27:35,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 09:27:35,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 09:27:35,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 09:27:35,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 09:27:35,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 09:27:35,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 09:27:35,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 09:27:35,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 09:27:35,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 09:27:35,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:27:35,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 09:27:35,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 09:27:35,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 09:27:35,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 09:27:35,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 09:27:35,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 09:27:35,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 09:27:35,663 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 09:27:35,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 09:27:35,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 09:27:35,663 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 09:27:35,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 09:27:35,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 09:27:35,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 09:27:35,860 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 09:27:35,860 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 09:27:35,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c [2023-12-21 09:27:36,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 09:27:37,274 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 09:27:37,275 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c [2023-12-21 09:27:37,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd8d0423/3daedba67c364c4c92fb31d5a162b7ae/FLAG8e0121b61 [2023-12-21 09:27:37,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fd8d0423/3daedba67c364c4c92fb31d5a162b7ae [2023-12-21 09:27:37,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 09:27:37,320 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 09:27:37,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 09:27:37,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 09:27:37,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 09:27:37,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:37,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee6ae99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37, skipping insertion in model container [2023-12-21 09:27:37,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:37,387 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 09:27:37,802 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product09.cil.c[57372,57385] [2023-12-21 09:27:37,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:27:37,820 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 09:27:37,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-21 09:27:37,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [246] [2023-12-21 09:27:37,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [295] [2023-12-21 09:27:37,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [448] [2023-12-21 09:27:37,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [860] [2023-12-21 09:27:37,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1226] [2023-12-21 09:27:37,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2301] [2023-12-21 09:27:37,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2503] [2023-12-21 09:27:37,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2567] [2023-12-21 09:27:37,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2584] [2023-12-21 09:27:37,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2593] [2023-12-21 09:27:37,916 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_spec0_product09.cil.c[57372,57385] [2023-12-21 09:27:37,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:27:37,939 INFO L206 MainTranslator]: Completed translation [2023-12-21 09:27:37,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37 WrapperNode [2023-12-21 09:27:37,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 09:27:37,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 09:27:37,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 09:27:37,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 09:27:37,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:37,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,007 INFO L138 Inliner]: procedures = 110, calls = 128, calls flagged for inlining = 38, calls inlined = 33, statements flattened = 647 [2023-12-21 09:27:38,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 09:27:38,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 09:27:38,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 09:27:38,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 09:27:38,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,060 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2023-12-21 09:27:38,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,060 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 09:27:38,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 09:27:38,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 09:27:38,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 09:27:38,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (1/1) ... [2023-12-21 09:27:38,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:27:38,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:27:38,100 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) [2023-12-21 09:27:38,107 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 [2023-12-21 09:27:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Base [2023-12-21 09:27:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Base [2023-12-21 09:27:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-21 09:27:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-21 09:27:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-21 09:27:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-21 09:27:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 09:27:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 09:27:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 09:27:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 09:27:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-21 09:27:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-21 09:27:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 09:27:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 09:27:38,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 09:27:38,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-21 09:27:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-21 09:27:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 09:27:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 09:27:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 09:27:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 09:27:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 09:27:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 09:27:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 09:27:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 09:27:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-21 09:27:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-21 09:27:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 09:27:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 09:27:38,283 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 09:27:38,285 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 09:27:38,612 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 09:27:38,666 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 09:27:38,666 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 09:27:38,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:27:38 BoogieIcfgContainer [2023-12-21 09:27:38,666 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 09:27:38,668 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 09:27:38,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 09:27:38,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 09:27:38,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:27:37" (1/3) ... [2023-12-21 09:27:38,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa91bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:27:38, skipping insertion in model container [2023-12-21 09:27:38,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:27:37" (2/3) ... [2023-12-21 09:27:38,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa91bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:27:38, skipping insertion in model container [2023-12-21 09:27:38,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:27:38" (3/3) ... [2023-12-21 09:27:38,672 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product09.cil.c [2023-12-21 09:27:38,684 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 09:27:38,685 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 09:27:38,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 09:27:38,734 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;@5974d15c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 09:27:38,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 09:27:38,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 145 states have (on average 1.6551724137931034) internal successors, (240), 148 states have internal predecessors, (240), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-21 09:27:38,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-21 09:27:38,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:38,754 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:38,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:38,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:38,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1450564991, now seen corresponding path program 1 times [2023-12-21 09:27:38,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:38,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039644651] [2023-12-21 09:27:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:38,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:27:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 09:27:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 09:27:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 09:27:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:27:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:27:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:27:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:27:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 09:27:39,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:39,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039644651] [2023-12-21 09:27:39,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039644651] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:27:39,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375999121] [2023-12-21 09:27:39,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:39,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:27:39,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:27:39,255 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) [2023-12-21 09:27:39,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 09:27:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:39,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 09:27:39,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:27:39,521 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:27:39,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:27:39,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375999121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:39,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:27:39,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-12-21 09:27:39,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643373699] [2023-12-21 09:27:39,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:39,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 09:27:39,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:39,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 09:27:39,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 09:27:39,546 INFO L87 Difference]: Start difference. First operand has 185 states, 145 states have (on average 1.6551724137931034) internal successors, (240), 148 states have internal predecessors, (240), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:39,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:39,588 INFO L93 Difference]: Finished difference Result 289 states and 447 transitions. [2023-12-21 09:27:39,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 09:27:39,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2023-12-21 09:27:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:39,602 INFO L225 Difference]: With dead ends: 289 [2023-12-21 09:27:39,602 INFO L226 Difference]: Without dead ends: 182 [2023-12-21 09:27:39,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 09:27:39,613 INFO L413 NwaCegarLoop]: 275 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, 275 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 [2023-12-21 09:27:39,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:27:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-21 09:27:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-12-21 09:27:39,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 143 states have (on average 1.6293706293706294) internal successors, (233), 145 states have internal predecessors, (233), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-21 09:27:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 284 transitions. [2023-12-21 09:27:39,663 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 284 transitions. Word has length 75 [2023-12-21 09:27:39,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:39,664 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 284 transitions. [2023-12-21 09:27:39,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 284 transitions. [2023-12-21 09:27:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 09:27:39,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:39,667 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:39,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 09:27:39,869 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 [2023-12-21 09:27:39,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:39,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash 887563800, now seen corresponding path program 1 times [2023-12-21 09:27:39,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:39,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223276830] [2023-12-21 09:27:39,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:27:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 09:27:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 09:27:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 09:27:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:27:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:27:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:27:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:27:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 09:27:40,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:40,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223276830] [2023-12-21 09:27:40,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223276830] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:27:40,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283326793] [2023-12-21 09:27:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:40,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:27:40,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:27:40,083 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) [2023-12-21 09:27:40,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 09:27:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 09:27:40,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:27:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 09:27:40,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:27:40,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283326793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:40,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:27:40,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-21 09:27:40,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498576172] [2023-12-21 09:27:40,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:40,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:27:40,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:40,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:27:40,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:27:40,293 INFO L87 Difference]: Start difference. First operand 182 states and 284 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:40,330 INFO L93 Difference]: Finished difference Result 285 states and 431 transitions. [2023-12-21 09:27:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:27:40,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 76 [2023-12-21 09:27:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:40,331 INFO L225 Difference]: With dead ends: 285 [2023-12-21 09:27:40,331 INFO L226 Difference]: Without dead ends: 184 [2023-12-21 09:27:40,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:27:40,333 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 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 [2023-12-21 09:27:40,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:27:40,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-21 09:27:40,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-12-21 09:27:40,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.6206896551724137) internal successors, (235), 147 states have internal predecessors, (235), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-21 09:27:40,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 286 transitions. [2023-12-21 09:27:40,342 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 286 transitions. Word has length 76 [2023-12-21 09:27:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:40,342 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 286 transitions. [2023-12-21 09:27:40,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 286 transitions. [2023-12-21 09:27:40,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-21 09:27:40,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:40,345 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:40,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 09:27:40,551 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 [2023-12-21 09:27:40,551 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:40,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash -175926311, now seen corresponding path program 1 times [2023-12-21 09:27:40,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:40,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673957524] [2023-12-21 09:27:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:40,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:27:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 09:27:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 09:27:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:27:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:27:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:27:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:27:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:27:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,731 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 09:27:40,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673957524] [2023-12-21 09:27:40,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673957524] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:27:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632385036] [2023-12-21 09:27:40,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:40,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:27:40,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:27:40,733 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) [2023-12-21 09:27:40,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 09:27:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:40,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 09:27:40,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:27:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 09:27:40,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:27:40,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632385036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:40,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:27:40,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-21 09:27:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031752117] [2023-12-21 09:27:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:40,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:27:40,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:40,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:27:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:27:40,951 INFO L87 Difference]: Start difference. First operand 184 states and 286 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:27:41,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:41,012 INFO L93 Difference]: Finished difference Result 365 states and 569 transitions. [2023-12-21 09:27:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:27:41,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 80 [2023-12-21 09:27:41,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:41,014 INFO L225 Difference]: With dead ends: 365 [2023-12-21 09:27:41,014 INFO L226 Difference]: Without dead ends: 186 [2023-12-21 09:27:41,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:27:41,016 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 8 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1041 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 [2023-12-21 09:27:41,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1041 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:27:41,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-21 09:27:41,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-12-21 09:27:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 146 states have (on average 1.6164383561643836) internal successors, (236), 149 states have internal predecessors, (236), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (27), 24 states have call predecessors, (27), 25 states have call successors, (27) [2023-12-21 09:27:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 289 transitions. [2023-12-21 09:27:41,027 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 289 transitions. Word has length 80 [2023-12-21 09:27:41,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:41,027 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 289 transitions. [2023-12-21 09:27:41,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:27:41,027 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 289 transitions. [2023-12-21 09:27:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-21 09:27:41,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:41,029 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:41,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 09:27:41,239 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 [2023-12-21 09:27:41,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:41,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash -615471499, now seen corresponding path program 1 times [2023-12-21 09:27:41,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:41,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908835016] [2023-12-21 09:27:41,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:41,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 09:27:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 09:27:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:27:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:27:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:27:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:27:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:27:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 09:27:41,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:41,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908835016] [2023-12-21 09:27:41,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908835016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:41,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:41,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 09:27:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907396795] [2023-12-21 09:27:41,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:41,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 09:27:41,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:41,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 09:27:41,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 09:27:41,380 INFO L87 Difference]: Start difference. First operand 186 states and 289 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:27:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:42,311 INFO L93 Difference]: Finished difference Result 461 states and 740 transitions. [2023-12-21 09:27:42,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 09:27:42,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 81 [2023-12-21 09:27:42,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:42,316 INFO L225 Difference]: With dead ends: 461 [2023-12-21 09:27:42,316 INFO L226 Difference]: Without dead ends: 290 [2023-12-21 09:27:42,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:27:42,318 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 449 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:42,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 612 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 09:27:42,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-12-21 09:27:42,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 186. [2023-12-21 09:27:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 146 states have (on average 1.6164383561643836) internal successors, (236), 149 states have internal predecessors, (236), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (26), 24 states have call predecessors, (26), 25 states have call successors, (26) [2023-12-21 09:27:42,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 288 transitions. [2023-12-21 09:27:42,360 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 288 transitions. Word has length 81 [2023-12-21 09:27:42,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:42,361 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 288 transitions. [2023-12-21 09:27:42,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:27:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 288 transitions. [2023-12-21 09:27:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-21 09:27:42,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:42,364 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:42,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 09:27:42,365 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:42,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash -668112235, now seen corresponding path program 2 times [2023-12-21 09:27:42,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:42,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444389493] [2023-12-21 09:27:42,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:42,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 09:27:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:27:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 09:27:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:27:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:27:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:27:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:27:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-21 09:27:42,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:42,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444389493] [2023-12-21 09:27:42,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444389493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:42,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:42,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 09:27:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922713383] [2023-12-21 09:27:42,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:42,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 09:27:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:42,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 09:27:42,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 09:27:42,490 INFO L87 Difference]: Start difference. First operand 186 states and 288 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:27:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:43,292 INFO L93 Difference]: Finished difference Result 463 states and 743 transitions. [2023-12-21 09:27:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 09:27:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 82 [2023-12-21 09:27:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:43,295 INFO L225 Difference]: With dead ends: 463 [2023-12-21 09:27:43,295 INFO L226 Difference]: Without dead ends: 292 [2023-12-21 09:27:43,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:27:43,297 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 443 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:43,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 613 Invalid, 1716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 09:27:43,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-21 09:27:43,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 188. [2023-12-21 09:27:43,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 147 states have (on average 1.6122448979591837) internal successors, (237), 151 states have internal predecessors, (237), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 25 states have call successors, (28) [2023-12-21 09:27:43,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 291 transitions. [2023-12-21 09:27:43,326 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 291 transitions. Word has length 82 [2023-12-21 09:27:43,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:43,326 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 291 transitions. [2023-12-21 09:27:43,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:27:43,327 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 291 transitions. [2023-12-21 09:27:43,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-21 09:27:43,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:43,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:43,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 09:27:43,328 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:43,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:43,328 INFO L85 PathProgramCache]: Analyzing trace with hash -288473648, now seen corresponding path program 1 times [2023-12-21 09:27:43,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:43,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279029670] [2023-12-21 09:27:43,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:43,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:27:43,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 09:27:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 09:27:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:27:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:27:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:27:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:27:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279029670] [2023-12-21 09:27:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279029670] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:27:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639253657] [2023-12-21 09:27:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:43,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:27:43,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:27:43,417 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) [2023-12-21 09:27:43,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 09:27:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:43,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:27:43,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:27:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:43,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:27:43,702 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:43,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639253657] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:27:43,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:27:43,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-12-21 09:27:43,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360336188] [2023-12-21 09:27:43,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:27:43,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 09:27:43,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:43,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 09:27:43,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:43,704 INFO L87 Difference]: Start difference. First operand 188 states and 291 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:27:44,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:44,620 INFO L93 Difference]: Finished difference Result 546 states and 906 transitions. [2023-12-21 09:27:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:27:44,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 83 [2023-12-21 09:27:44,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:44,623 INFO L225 Difference]: With dead ends: 546 [2023-12-21 09:27:44,623 INFO L226 Difference]: Without dead ends: 445 [2023-12-21 09:27:44,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:27:44,624 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 754 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:44,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 710 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 09:27:44,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-12-21 09:27:44,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 326. [2023-12-21 09:27:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 276 states have (on average 1.7282608695652173) internal successors, (477), 280 states have internal predecessors, (477), 35 states have call successors, (35), 12 states have call predecessors, (35), 14 states have return successors, (37), 33 states have call predecessors, (37), 34 states have call successors, (37) [2023-12-21 09:27:44,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 549 transitions. [2023-12-21 09:27:44,644 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 549 transitions. Word has length 83 [2023-12-21 09:27:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:44,644 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 549 transitions. [2023-12-21 09:27:44,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 7 states have internal predecessors, (75), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:27:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 549 transitions. [2023-12-21 09:27:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 09:27:44,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:44,648 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:44,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-21 09:27:44,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:27:44,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:44,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:44,863 INFO L85 PathProgramCache]: Analyzing trace with hash 107775441, now seen corresponding path program 1 times [2023-12-21 09:27:44,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:44,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654724882] [2023-12-21 09:27:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:44,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 09:27:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 09:27:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:27:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:27:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:27:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:27:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:27:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:44,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:44,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654724882] [2023-12-21 09:27:44,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654724882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:44,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:44,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:44,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732633040] [2023-12-21 09:27:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:44,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:44,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:44,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:44,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:44,928 INFO L87 Difference]: Start difference. First operand 326 states and 549 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:45,566 INFO L93 Difference]: Finished difference Result 876 states and 1515 transitions. [2023-12-21 09:27:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2023-12-21 09:27:45,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:45,568 INFO L225 Difference]: With dead ends: 876 [2023-12-21 09:27:45,568 INFO L226 Difference]: Without dead ends: 572 [2023-12-21 09:27:45,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:45,570 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 517 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:45,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 446 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-12-21 09:27:45,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 463. [2023-12-21 09:27:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 404 states have (on average 1.7574257425742574) internal successors, (710), 408 states have internal predecessors, (710), 44 states have call successors, (44), 12 states have call predecessors, (44), 14 states have return successors, (46), 42 states have call predecessors, (46), 43 states have call successors, (46) [2023-12-21 09:27:45,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 800 transitions. [2023-12-21 09:27:45,586 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 800 transitions. Word has length 90 [2023-12-21 09:27:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:45,586 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 800 transitions. [2023-12-21 09:27:45,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 800 transitions. [2023-12-21 09:27:45,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 09:27:45,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:45,588 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:45,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 09:27:45,588 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:45,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash 973981928, now seen corresponding path program 1 times [2023-12-21 09:27:45,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:45,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635360170] [2023-12-21 09:27:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:45,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 09:27:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 09:27:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:27:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:27:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:27:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:27:45,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:27:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:45,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:45,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635360170] [2023-12-21 09:27:45,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635360170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:45,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:45,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:45,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483810369] [2023-12-21 09:27:45,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:45,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:45,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:45,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:45,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:45,641 INFO L87 Difference]: Start difference. First operand 463 states and 800 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:46,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:46,287 INFO L93 Difference]: Finished difference Result 1233 states and 2170 transitions. [2023-12-21 09:27:46,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:46,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2023-12-21 09:27:46,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:46,291 INFO L225 Difference]: With dead ends: 1233 [2023-12-21 09:27:46,291 INFO L226 Difference]: Without dead ends: 799 [2023-12-21 09:27:46,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:46,292 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 518 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:46,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 434 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:46,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-12-21 09:27:46,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 690. [2023-12-21 09:27:46,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 616 states have (on average 1.7727272727272727) internal successors, (1092), 620 states have internal predecessors, (1092), 59 states have call successors, (59), 12 states have call predecessors, (59), 14 states have return successors, (61), 57 states have call predecessors, (61), 58 states have call successors, (61) [2023-12-21 09:27:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1212 transitions. [2023-12-21 09:27:46,311 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1212 transitions. Word has length 91 [2023-12-21 09:27:46,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:46,312 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1212 transitions. [2023-12-21 09:27:46,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:46,312 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1212 transitions. [2023-12-21 09:27:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 09:27:46,314 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:46,314 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:46,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 09:27:46,314 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:46,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1898604051, now seen corresponding path program 1 times [2023-12-21 09:27:46,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:46,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645205762] [2023-12-21 09:27:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:46,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 09:27:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 09:27:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:27:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:27:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:27:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:27:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:27:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:46,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:46,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645205762] [2023-12-21 09:27:46,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645205762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:46,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:46,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:46,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413755480] [2023-12-21 09:27:46,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:46,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:46,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:46,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:46,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:46,366 INFO L87 Difference]: Start difference. First operand 690 states and 1212 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:47,066 INFO L93 Difference]: Finished difference Result 1805 states and 3210 transitions. [2023-12-21 09:27:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:47,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-12-21 09:27:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:47,071 INFO L225 Difference]: With dead ends: 1805 [2023-12-21 09:27:47,071 INFO L226 Difference]: Without dead ends: 1161 [2023-12-21 09:27:47,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:47,073 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 514 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:47,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 435 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:47,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2023-12-21 09:27:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1052. [2023-12-21 09:27:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 954 states have (on average 1.7756813417190775) internal successors, (1694), 958 states have internal predecessors, (1694), 83 states have call successors, (83), 12 states have call predecessors, (83), 14 states have return successors, (85), 81 states have call predecessors, (85), 82 states have call successors, (85) [2023-12-21 09:27:47,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1862 transitions. [2023-12-21 09:27:47,098 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1862 transitions. Word has length 92 [2023-12-21 09:27:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:47,098 INFO L495 AbstractCegarLoop]: Abstraction has 1052 states and 1862 transitions. [2023-12-21 09:27:47,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1862 transitions. [2023-12-21 09:27:47,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 09:27:47,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:47,101 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:47,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 09:27:47,101 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:47,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:47,102 INFO L85 PathProgramCache]: Analyzing trace with hash 630570150, now seen corresponding path program 1 times [2023-12-21 09:27:47,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:47,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527254514] [2023-12-21 09:27:47,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:47,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:27:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:27:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:27:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:27:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:27:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:27:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:27:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,153 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:47,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:47,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527254514] [2023-12-21 09:27:47,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527254514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:47,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:47,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:47,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563853190] [2023-12-21 09:27:47,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:47,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:47,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:47,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:47,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:47,155 INFO L87 Difference]: Start difference. First operand 1052 states and 1862 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:47,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:47,777 INFO L93 Difference]: Finished difference Result 2716 states and 4854 transitions. [2023-12-21 09:27:47,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:47,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2023-12-21 09:27:47,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:47,784 INFO L225 Difference]: With dead ends: 2716 [2023-12-21 09:27:47,784 INFO L226 Difference]: Without dead ends: 1745 [2023-12-21 09:27:47,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:47,786 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 512 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:47,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 435 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 09:27:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2023-12-21 09:27:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1636. [2023-12-21 09:27:47,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1499 states have (on average 1.771847898599066) internal successors, (2656), 1503 states have internal predecessors, (2656), 122 states have call successors, (122), 12 states have call predecessors, (122), 14 states have return successors, (124), 120 states have call predecessors, (124), 121 states have call successors, (124) [2023-12-21 09:27:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2902 transitions. [2023-12-21 09:27:47,823 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2902 transitions. Word has length 93 [2023-12-21 09:27:47,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:47,823 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 2902 transitions. [2023-12-21 09:27:47,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2902 transitions. [2023-12-21 09:27:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 09:27:47,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:47,827 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:47,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 09:27:47,828 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:47,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash -573659563, now seen corresponding path program 1 times [2023-12-21 09:27:47,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:47,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335580035] [2023-12-21 09:27:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:27:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:27:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:27:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:27:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:27:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:27:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:27:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:47,893 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:47,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:47,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335580035] [2023-12-21 09:27:47,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335580035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:47,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:47,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:47,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908986175] [2023-12-21 09:27:47,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:47,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:47,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:47,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:47,895 INFO L87 Difference]: Start difference. First operand 1636 states and 2902 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:48,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:48,612 INFO L93 Difference]: Finished difference Result 4215 states and 7544 transitions. [2023-12-21 09:27:48,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:48,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2023-12-21 09:27:48,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:48,624 INFO L225 Difference]: With dead ends: 4215 [2023-12-21 09:27:48,624 INFO L226 Difference]: Without dead ends: 2721 [2023-12-21 09:27:48,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:48,626 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 511 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:48,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 435 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:48,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2023-12-21 09:27:48,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2612. [2023-12-21 09:27:48,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2409 states have (on average 1.7654628476546286) internal successors, (4253), 2413 states have internal predecessors, (4253), 188 states have call successors, (188), 12 states have call predecessors, (188), 14 states have return successors, (190), 186 states have call predecessors, (190), 187 states have call successors, (190) [2023-12-21 09:27:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 4631 transitions. [2023-12-21 09:27:48,687 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 4631 transitions. Word has length 94 [2023-12-21 09:27:48,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:48,687 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 4631 transitions. [2023-12-21 09:27:48,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:48,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 4631 transitions. [2023-12-21 09:27:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 09:27:48,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:48,694 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 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] [2023-12-21 09:27:48,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 09:27:48,695 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:48,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1386112621, now seen corresponding path program 2 times [2023-12-21 09:27:48,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:48,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094513142] [2023-12-21 09:27:48,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 09:27:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:27:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:27:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:27:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:27:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:27:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:27:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 09:27:48,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094513142] [2023-12-21 09:27:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094513142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:48,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:48,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:27:48,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109152912] [2023-12-21 09:27:48,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:48,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:27:48,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:27:48,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:27:48,783 INFO L87 Difference]: Start difference. First operand 2612 states and 4631 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:49,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:49,665 INFO L93 Difference]: Finished difference Result 4581 states and 8136 transitions. [2023-12-21 09:27:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:27:49,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2023-12-21 09:27:49,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:49,674 INFO L225 Difference]: With dead ends: 4581 [2023-12-21 09:27:49,674 INFO L226 Difference]: Without dead ends: 2721 [2023-12-21 09:27:49,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:27:49,677 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 606 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:49,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 762 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 09:27:49,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2023-12-21 09:27:49,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2612. [2023-12-21 09:27:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2409 states have (on average 1.7563304275633043) internal successors, (4231), 2413 states have internal predecessors, (4231), 188 states have call successors, (188), 12 states have call predecessors, (188), 14 states have return successors, (190), 186 states have call predecessors, (190), 187 states have call successors, (190) [2023-12-21 09:27:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 4609 transitions. [2023-12-21 09:27:49,745 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 4609 transitions. Word has length 95 [2023-12-21 09:27:49,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:49,745 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 4609 transitions. [2023-12-21 09:27:49,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 4609 transitions. [2023-12-21 09:27:49,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 09:27:49,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:49,751 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:49,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 09:27:49,751 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:49,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1484570524, now seen corresponding path program 1 times [2023-12-21 09:27:49,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:49,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520810318] [2023-12-21 09:27:49,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:49,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 09:27:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:27:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:27:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:27:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:27:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:27:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:27:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:49,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:49,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520810318] [2023-12-21 09:27:49,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520810318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:49,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:49,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:49,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952016646] [2023-12-21 09:27:49,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:49,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:49,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:49,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:49,801 INFO L87 Difference]: Start difference. First operand 2612 states and 4609 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:50,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:50,511 INFO L93 Difference]: Finished difference Result 6578 states and 11718 transitions. [2023-12-21 09:27:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:50,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2023-12-21 09:27:50,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:50,525 INFO L225 Difference]: With dead ends: 6578 [2023-12-21 09:27:50,525 INFO L226 Difference]: Without dead ends: 4267 [2023-12-21 09:27:50,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:50,530 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 507 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:50,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 436 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2023-12-21 09:27:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4158. [2023-12-21 09:27:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3838 states have (on average 1.7488275143303804) internal successors, (6712), 3842 states have internal predecessors, (6712), 305 states have call successors, (305), 12 states have call predecessors, (305), 14 states have return successors, (307), 303 states have call predecessors, (307), 304 states have call successors, (307) [2023-12-21 09:27:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 7324 transitions. [2023-12-21 09:27:50,654 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 7324 transitions. Word has length 95 [2023-12-21 09:27:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:50,654 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 7324 transitions. [2023-12-21 09:27:50,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 7324 transitions. [2023-12-21 09:27:50,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 09:27:50,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:50,664 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:50,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 09:27:50,664 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:50,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1115593065, now seen corresponding path program 1 times [2023-12-21 09:27:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:50,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653183249] [2023-12-21 09:27:50,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:50,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 09:27:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:27:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 09:27:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:27:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:27:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:27:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:27:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:50,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:50,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653183249] [2023-12-21 09:27:50,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653183249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:50,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:50,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:50,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543251200] [2023-12-21 09:27:50,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:50,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:50,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:50,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:50,726 INFO L87 Difference]: Start difference. First operand 4158 states and 7324 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:51,432 INFO L93 Difference]: Finished difference Result 10941 states and 19440 transitions. [2023-12-21 09:27:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:51,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2023-12-21 09:27:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:51,468 INFO L225 Difference]: With dead ends: 10941 [2023-12-21 09:27:51,468 INFO L226 Difference]: Without dead ends: 7221 [2023-12-21 09:27:51,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:51,477 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 505 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:51,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 436 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:51,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7221 states. [2023-12-21 09:27:51,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7221 to 7112. [2023-12-21 09:27:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 6576 states have (on average 1.7408759124087592) internal successors, (11448), 6580 states have internal predecessors, (11448), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2023-12-21 09:27:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 12492 transitions. [2023-12-21 09:27:51,676 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 12492 transitions. Word has length 96 [2023-12-21 09:27:51,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:51,677 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 12492 transitions. [2023-12-21 09:27:51,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:51,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 12492 transitions. [2023-12-21 09:27:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 09:27:51,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:51,694 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:51,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 09:27:51,695 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:51,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1004618186, now seen corresponding path program 1 times [2023-12-21 09:27:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:51,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574321331] [2023-12-21 09:27:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 09:27:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:27:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:27:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:27:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:27:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:27:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:27:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:51,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:51,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574321331] [2023-12-21 09:27:51,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574321331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:51,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:51,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:51,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116164899] [2023-12-21 09:27:51,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:51,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:51,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:51,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:51,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:51,760 INFO L87 Difference]: Start difference. First operand 7112 states and 12492 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:52,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:52,503 INFO L93 Difference]: Finished difference Result 16204 states and 28483 transitions. [2023-12-21 09:27:52,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:52,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2023-12-21 09:27:52,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:52,525 INFO L225 Difference]: With dead ends: 16204 [2023-12-21 09:27:52,525 INFO L226 Difference]: Without dead ends: 10263 [2023-12-21 09:27:52,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:52,536 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 505 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:52,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 408 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:52,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10263 states. [2023-12-21 09:27:52,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10263 to 10154. [2023-12-21 09:27:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10154 states, 9618 states have (on average 1.7177167810355582) internal successors, (16521), 9622 states have internal predecessors, (16521), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2023-12-21 09:27:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 17565 transitions. [2023-12-21 09:27:52,799 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 17565 transitions. Word has length 97 [2023-12-21 09:27:52,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:52,799 INFO L495 AbstractCegarLoop]: Abstraction has 10154 states and 17565 transitions. [2023-12-21 09:27:52,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:52,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 17565 transitions. [2023-12-21 09:27:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 09:27:52,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:52,816 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:52,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 09:27:52,816 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:52,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash 689593789, now seen corresponding path program 1 times [2023-12-21 09:27:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:52,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794169820] [2023-12-21 09:27:52,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:52,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:27:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:27:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:27:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:27:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:27:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:27:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:27:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:52,905 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-21 09:27:52,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794169820] [2023-12-21 09:27:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794169820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:52,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:52,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:27:52,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975934842] [2023-12-21 09:27:52,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:52,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:27:52,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:52,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:27:52,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:27:52,907 INFO L87 Difference]: Start difference. First operand 10154 states and 17565 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:53,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:53,701 INFO L93 Difference]: Finished difference Result 18816 states and 32682 transitions. [2023-12-21 09:27:53,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:27:53,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2023-12-21 09:27:53,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:53,793 INFO L225 Difference]: With dead ends: 18816 [2023-12-21 09:27:53,793 INFO L226 Difference]: Without dead ends: 10263 [2023-12-21 09:27:53,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:27:53,802 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 604 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:53,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 762 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:53,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10263 states. [2023-12-21 09:27:53,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10263 to 10154. [2023-12-21 09:27:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10154 states, 9618 states have (on average 1.7034726554377209) internal successors, (16384), 9622 states have internal predecessors, (16384), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2023-12-21 09:27:53,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10154 states to 10154 states and 17428 transitions. [2023-12-21 09:27:53,970 INFO L78 Accepts]: Start accepts. Automaton has 10154 states and 17428 transitions. Word has length 98 [2023-12-21 09:27:53,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:53,970 INFO L495 AbstractCegarLoop]: Abstraction has 10154 states and 17428 transitions. [2023-12-21 09:27:53,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:53,971 INFO L276 IsEmpty]: Start isEmpty. Operand 10154 states and 17428 transitions. [2023-12-21 09:27:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 09:27:53,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:53,989 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:53,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 09:27:53,989 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:53,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:53,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1887696551, now seen corresponding path program 1 times [2023-12-21 09:27:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:53,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028413546] [2023-12-21 09:27:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:53,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:27:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:27:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:27:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:27:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:27:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:27:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:27:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:54,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:54,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028413546] [2023-12-21 09:27:54,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028413546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:54,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:54,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:54,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670539218] [2023-12-21 09:27:54,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:54,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:54,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:54,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:54,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:54,046 INFO L87 Difference]: Start difference. First operand 10154 states and 17428 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:54,971 INFO L93 Difference]: Finished difference Result 27147 states and 46818 transitions. [2023-12-21 09:27:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:54,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2023-12-21 09:27:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:55,006 INFO L225 Difference]: With dead ends: 27147 [2023-12-21 09:27:55,007 INFO L226 Difference]: Without dead ends: 18437 [2023-12-21 09:27:55,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:55,026 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 502 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:55,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 442 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:55,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18437 states. [2023-12-21 09:27:55,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18437 to 18328. [2023-12-21 09:27:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18328 states, 17381 states have (on average 1.688913181059778) internal successors, (29355), 17385 states have internal predecessors, (29355), 932 states have call successors, (932), 12 states have call predecessors, (932), 14 states have return successors, (934), 930 states have call predecessors, (934), 931 states have call successors, (934) [2023-12-21 09:27:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18328 states to 18328 states and 31221 transitions. [2023-12-21 09:27:55,454 INFO L78 Accepts]: Start accepts. Automaton has 18328 states and 31221 transitions. Word has length 98 [2023-12-21 09:27:55,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:55,454 INFO L495 AbstractCegarLoop]: Abstraction has 18328 states and 31221 transitions. [2023-12-21 09:27:55,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 18328 states and 31221 transitions. [2023-12-21 09:27:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 09:27:55,470 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:55,470 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:55,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 09:27:55,470 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:55,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:55,471 INFO L85 PathProgramCache]: Analyzing trace with hash -766007876, now seen corresponding path program 1 times [2023-12-21 09:27:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:55,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518969275] [2023-12-21 09:27:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:27:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:27:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:27:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:27:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:27:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:27:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:27:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:55,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:55,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:55,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518969275] [2023-12-21 09:27:55,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518969275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:55,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:55,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:55,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39500136] [2023-12-21 09:27:55,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:55,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:55,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:55,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:55,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:55,537 INFO L87 Difference]: Start difference. First operand 18328 states and 31221 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:56,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:56,627 INFO L93 Difference]: Finished difference Result 50494 states and 86265 transitions. [2023-12-21 09:27:56,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:27:56,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2023-12-21 09:27:56,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:56,693 INFO L225 Difference]: With dead ends: 50494 [2023-12-21 09:27:56,693 INFO L226 Difference]: Without dead ends: 34097 [2023-12-21 09:27:56,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:27:56,710 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 501 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:56,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 434 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 09:27:56,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34097 states. [2023-12-21 09:27:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34097 to 33988. [2023-12-21 09:27:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33988 states, 32243 states have (on average 1.6720528486803337) internal successors, (53912), 32247 states have internal predecessors, (53912), 1730 states have call successors, (1730), 12 states have call predecessors, (1730), 14 states have return successors, (1732), 1728 states have call predecessors, (1732), 1729 states have call successors, (1732) [2023-12-21 09:27:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33988 states to 33988 states and 57374 transitions. [2023-12-21 09:27:57,409 INFO L78 Accepts]: Start accepts. Automaton has 33988 states and 57374 transitions. Word has length 99 [2023-12-21 09:27:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:57,409 INFO L495 AbstractCegarLoop]: Abstraction has 33988 states and 57374 transitions. [2023-12-21 09:27:57,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:57,410 INFO L276 IsEmpty]: Start isEmpty. Operand 33988 states and 57374 transitions. [2023-12-21 09:27:57,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 09:27:57,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:57,435 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:27:57,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 09:27:57,435 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:57,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:57,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1897087177, now seen corresponding path program 1 times [2023-12-21 09:27:57,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:57,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332004931] [2023-12-21 09:27:57,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:57,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:57,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:27:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:27:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:27:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:27:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:27:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:27:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:27:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 09:27:57,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:57,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332004931] [2023-12-21 09:27:57,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332004931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:57,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:57,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:27:57,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135212136] [2023-12-21 09:27:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:57,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:27:57,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:27:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:27:57,660 INFO L87 Difference]: Start difference. First operand 33988 states and 57374 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:59,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:27:59,041 INFO L93 Difference]: Finished difference Result 65550 states and 110915 transitions. [2023-12-21 09:27:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:27:59,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2023-12-21 09:27:59,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:27:59,108 INFO L225 Difference]: With dead ends: 65550 [2023-12-21 09:27:59,108 INFO L226 Difference]: Without dead ends: 34097 [2023-12-21 09:27:59,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:27:59,127 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 607 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:27:59,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 753 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 09:27:59,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34097 states. [2023-12-21 09:27:59,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34097 to 33988. [2023-12-21 09:27:59,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33988 states, 32243 states have (on average 1.6558322736718047) internal successors, (53389), 32247 states have internal predecessors, (53389), 1730 states have call successors, (1730), 12 states have call predecessors, (1730), 14 states have return successors, (1732), 1728 states have call predecessors, (1732), 1729 states have call successors, (1732) [2023-12-21 09:27:59,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33988 states to 33988 states and 56851 transitions. [2023-12-21 09:27:59,877 INFO L78 Accepts]: Start accepts. Automaton has 33988 states and 56851 transitions. Word has length 100 [2023-12-21 09:27:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:27:59,878 INFO L495 AbstractCegarLoop]: Abstraction has 33988 states and 56851 transitions. [2023-12-21 09:27:59,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:27:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 33988 states and 56851 transitions. [2023-12-21 09:27:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 09:27:59,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:27:59,905 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 09:27:59,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 09:27:59,906 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:27:59,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:27:59,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1438749979, now seen corresponding path program 1 times [2023-12-21 09:27:59,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:27:59,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377940718] [2023-12-21 09:27:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:27:59,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:27:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:27:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:27:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:27:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:27:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:27:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:27:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:27:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:27:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:27:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:27:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:27:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 09:27:59,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:27:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377940718] [2023-12-21 09:27:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377940718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:27:59,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:27:59,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 09:27:59,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981580848] [2023-12-21 09:27:59,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:27:59,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 09:27:59,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:27:59,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 09:27:59,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 09:27:59,965 INFO L87 Difference]: Start difference. First operand 33988 states and 56851 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:28:01,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:01,406 INFO L93 Difference]: Finished difference Result 64402 states and 107654 transitions. [2023-12-21 09:28:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:28:01,406 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2023-12-21 09:28:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:01,552 INFO L225 Difference]: With dead ends: 64402 [2023-12-21 09:28:01,552 INFO L226 Difference]: Without dead ends: 64301 [2023-12-21 09:28:01,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:28:01,564 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 498 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:01,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 436 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 09:28:01,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64301 states. [2023-12-21 09:28:02,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64301 to 64192. [2023-12-21 09:28:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64192 states, 60878 states have (on average 1.6364860869279543) internal successors, (99626), 60882 states have internal predecessors, (99626), 3299 states have call successors, (3299), 12 states have call predecessors, (3299), 14 states have return successors, (3301), 3297 states have call predecessors, (3301), 3298 states have call successors, (3301) [2023-12-21 09:28:03,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64192 states to 64192 states and 106226 transitions. [2023-12-21 09:28:03,044 INFO L78 Accepts]: Start accepts. Automaton has 64192 states and 106226 transitions. Word has length 100 [2023-12-21 09:28:03,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:03,045 INFO L495 AbstractCegarLoop]: Abstraction has 64192 states and 106226 transitions. [2023-12-21 09:28:03,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:28:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 64192 states and 106226 transitions. [2023-12-21 09:28:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 09:28:03,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:03,077 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:28:03,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 09:28:03,077 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:03,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:03,078 INFO L85 PathProgramCache]: Analyzing trace with hash -517478641, now seen corresponding path program 1 times [2023-12-21 09:28:03,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:03,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355682959] [2023-12-21 09:28:03,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:03,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:28:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:28:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:28:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:28:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:28:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:28:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:28:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-21 09:28:03,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:03,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355682959] [2023-12-21 09:28:03,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355682959] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:28:03,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117069923] [2023-12-21 09:28:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:03,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:03,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:28:03,357 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) [2023-12-21 09:28:03,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 09:28:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:03,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 09:28:03,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:28:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 09:28:03,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:28:03,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117069923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:03,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:28:03,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 26 [2023-12-21 09:28:03,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256353451] [2023-12-21 09:28:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:03,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:28:03,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:03,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:28:03,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2023-12-21 09:28:03,793 INFO L87 Difference]: Start difference. First operand 64192 states and 106226 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-21 09:28:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:05,298 INFO L93 Difference]: Finished difference Result 64402 states and 106536 transitions. [2023-12-21 09:28:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:28:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 101 [2023-12-21 09:28:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:05,423 INFO L225 Difference]: With dead ends: 64402 [2023-12-21 09:28:05,424 INFO L226 Difference]: Without dead ends: 64306 [2023-12-21 09:28:05,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 09:28:05,436 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 433 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:05,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 2406 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 09:28:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64306 states. [2023-12-21 09:28:06,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64306 to 64296. [2023-12-21 09:28:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64296 states, 60954 states have (on average 1.63628309873019) internal successors, (99738), 60959 states have internal predecessors, (99738), 3316 states have call successors, (3316), 21 states have call predecessors, (3316), 25 states have return successors, (3330), 3315 states have call predecessors, (3330), 3314 states have call successors, (3330) [2023-12-21 09:28:06,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64296 states to 64296 states and 106384 transitions. [2023-12-21 09:28:06,970 INFO L78 Accepts]: Start accepts. Automaton has 64296 states and 106384 transitions. Word has length 101 [2023-12-21 09:28:06,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:06,971 INFO L495 AbstractCegarLoop]: Abstraction has 64296 states and 106384 transitions. [2023-12-21 09:28:06,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-21 09:28:06,971 INFO L276 IsEmpty]: Start isEmpty. Operand 64296 states and 106384 transitions. [2023-12-21 09:28:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 09:28:07,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:07,010 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 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] [2023-12-21 09:28:07,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 09:28:07,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:07,216 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:07,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:07,217 INFO L85 PathProgramCache]: Analyzing trace with hash -117715309, now seen corresponding path program 1 times [2023-12-21 09:28:07,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:07,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48945247] [2023-12-21 09:28:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:07,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:28:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:28:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:28:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:28:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:28:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:28:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:28:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 09:28:07,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48945247] [2023-12-21 09:28:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48945247] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:28:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47575245] [2023-12-21 09:28:07,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:07,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:07,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:28:07,348 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) [2023-12-21 09:28:07,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 09:28:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:07,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 09:28:07,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:28:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-21 09:28:07,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:28:07,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47575245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:07,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:28:07,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-21 09:28:07,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514174999] [2023-12-21 09:28:07,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:07,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:28:07,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:07,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:28:07,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:28:07,609 INFO L87 Difference]: Start difference. First operand 64296 states and 106384 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:28:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:08,466 INFO L93 Difference]: Finished difference Result 64398 states and 106534 transitions. [2023-12-21 09:28:08,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:28:08,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2023-12-21 09:28:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:08,593 INFO L225 Difference]: With dead ends: 64398 [2023-12-21 09:28:08,594 INFO L226 Difference]: Without dead ends: 64300 [2023-12-21 09:28:08,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:28:08,613 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 4 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:08,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1045 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:28:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64300 states. [2023-12-21 09:28:09,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64300 to 64298. [2023-12-21 09:28:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64298 states, 60955 states have (on average 1.6362726601591338) internal successors, (99739), 60961 states have internal predecessors, (99739), 3316 states have call successors, (3316), 21 states have call predecessors, (3316), 26 states have return successors, (3333), 3315 states have call predecessors, (3333), 3314 states have call successors, (3333) [2023-12-21 09:28:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64298 states to 64298 states and 106388 transitions. [2023-12-21 09:28:10,316 INFO L78 Accepts]: Start accepts. Automaton has 64298 states and 106388 transitions. Word has length 102 [2023-12-21 09:28:10,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:10,316 INFO L495 AbstractCegarLoop]: Abstraction has 64298 states and 106388 transitions. [2023-12-21 09:28:10,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-21 09:28:10,317 INFO L276 IsEmpty]: Start isEmpty. Operand 64298 states and 106388 transitions. [2023-12-21 09:28:10,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 09:28:10,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:10,367 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:28:10,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 09:28:10,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:10,573 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:10,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:10,573 INFO L85 PathProgramCache]: Analyzing trace with hash -153357062, now seen corresponding path program 1 times [2023-12-21 09:28:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:10,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004774789] [2023-12-21 09:28:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:10,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:28:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:28:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:28:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:28:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:28:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:28:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:28:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-21 09:28:10,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:10,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004774789] [2023-12-21 09:28:10,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004774789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:10,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:28:10,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 09:28:10,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688999453] [2023-12-21 09:28:10,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:10,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 09:28:10,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:10,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 09:28:10,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 09:28:10,763 INFO L87 Difference]: Start difference. First operand 64298 states and 106388 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:28:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:13,679 INFO L93 Difference]: Finished difference Result 126360 states and 209472 transitions. [2023-12-21 09:28:13,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-21 09:28:13,680 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-12-21 09:28:13,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:14,009 INFO L225 Difference]: With dead ends: 126360 [2023-12-21 09:28:14,009 INFO L226 Difference]: Without dead ends: 126166 [2023-12-21 09:28:14,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2023-12-21 09:28:14,039 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 1151 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:14,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 618 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 09:28:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126166 states. [2023-12-21 09:28:16,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126166 to 125806. [2023-12-21 09:28:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125806 states, 119247 states have (on average 1.6383640678591496) internal successors, (195370), 119258 states have internal predecessors, (195370), 6505 states have call successors, (6505), 40 states have call predecessors, (6505), 53 states have return successors, (6554), 6507 states have call predecessors, (6554), 6501 states have call successors, (6554) [2023-12-21 09:28:16,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125806 states to 125806 states and 208429 transitions. [2023-12-21 09:28:16,875 INFO L78 Accepts]: Start accepts. Automaton has 125806 states and 208429 transitions. Word has length 102 [2023-12-21 09:28:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:16,875 INFO L495 AbstractCegarLoop]: Abstraction has 125806 states and 208429 transitions. [2023-12-21 09:28:16,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:28:16,875 INFO L276 IsEmpty]: Start isEmpty. Operand 125806 states and 208429 transitions. [2023-12-21 09:28:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 09:28:16,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:16,936 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:28:16,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 09:28:16,936 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:16,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:16,936 INFO L85 PathProgramCache]: Analyzing trace with hash 469227498, now seen corresponding path program 1 times [2023-12-21 09:28:16,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:16,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611123407] [2023-12-21 09:28:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:28:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:28:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:28:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:28:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:28:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:28:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:28:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-21 09:28:17,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:17,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611123407] [2023-12-21 09:28:17,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611123407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:17,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:28:17,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 09:28:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833826054] [2023-12-21 09:28:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:17,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 09:28:17,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:17,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 09:28:17,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-12-21 09:28:17,099 INFO L87 Difference]: Start difference. First operand 125806 states and 208429 transitions. Second operand has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 9 states have internal predecessors, (58), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-21 09:28:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:21,238 INFO L93 Difference]: Finished difference Result 127116 states and 210764 transitions. [2023-12-21 09:28:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 09:28:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 9 states have internal predecessors, (58), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 102 [2023-12-21 09:28:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:21,567 INFO L225 Difference]: With dead ends: 127116 [2023-12-21 09:28:21,567 INFO L226 Difference]: Without dead ends: 126642 [2023-12-21 09:28:21,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=270, Invalid=1452, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 09:28:21,593 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 753 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 3346 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 3659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 3346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:21,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1170 Invalid, 3659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 3346 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 09:28:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126642 states. [2023-12-21 09:28:24,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126642 to 126040. [2023-12-21 09:28:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126040 states, 119407 states have (on average 1.6380111718743458) internal successors, (195590), 119424 states have internal predecessors, (195590), 6571 states have call successors, (6571), 48 states have call predecessors, (6571), 61 states have return successors, (6648), 6567 states have call predecessors, (6648), 6559 states have call successors, (6648) [2023-12-21 09:28:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126040 states to 126040 states and 208809 transitions. [2023-12-21 09:28:24,467 INFO L78 Accepts]: Start accepts. Automaton has 126040 states and 208809 transitions. Word has length 102 [2023-12-21 09:28:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:24,468 INFO L495 AbstractCegarLoop]: Abstraction has 126040 states and 208809 transitions. [2023-12-21 09:28:24,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 9 states have internal predecessors, (58), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2023-12-21 09:28:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 126040 states and 208809 transitions. [2023-12-21 09:28:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 09:28:24,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:24,806 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 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] [2023-12-21 09:28:24,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 09:28:24,807 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:24,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2127864145, now seen corresponding path program 1 times [2023-12-21 09:28:24,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:24,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478765909] [2023-12-21 09:28:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:28:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:28:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:28:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:28:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:28:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:28:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:28:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 09:28:24,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:24,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478765909] [2023-12-21 09:28:24,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478765909] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:28:24,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548896284] [2023-12-21 09:28:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:24,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:24,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:28:24,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:28:24,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 09:28:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:25,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 09:28:25,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:28:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-21 09:28:25,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:28:25,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548896284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:25,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:28:25,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2023-12-21 09:28:25,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885945182] [2023-12-21 09:28:25,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:25,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:28:25,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:25,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:28:25,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:28:25,250 INFO L87 Difference]: Start difference. First operand 126040 states and 208809 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:28:27,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:27,322 INFO L93 Difference]: Finished difference Result 126762 states and 209934 transitions. [2023-12-21 09:28:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 09:28:27,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-12-21 09:28:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:27,572 INFO L225 Difference]: With dead ends: 126762 [2023-12-21 09:28:27,572 INFO L226 Difference]: Without dead ends: 126404 [2023-12-21 09:28:27,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:28:27,595 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 346 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:27,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 983 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 09:28:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126404 states. [2023-12-21 09:28:30,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126404 to 126268. [2023-12-21 09:28:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126268 states, 119579 states have (on average 1.6377123073449351) internal successors, (195836), 119598 states have internal predecessors, (195836), 6607 states have call successors, (6607), 66 states have call predecessors, (6607), 81 states have return successors, (6684), 6603 states have call predecessors, (6684), 6589 states have call successors, (6684) [2023-12-21 09:28:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126268 states to 126268 states and 209127 transitions. [2023-12-21 09:28:30,677 INFO L78 Accepts]: Start accepts. Automaton has 126268 states and 209127 transitions. Word has length 102 [2023-12-21 09:28:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:30,677 INFO L495 AbstractCegarLoop]: Abstraction has 126268 states and 209127 transitions. [2023-12-21 09:28:30,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-21 09:28:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 126268 states and 209127 transitions. [2023-12-21 09:28:30,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 09:28:30,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:30,726 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:28:30,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 09:28:30,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:30,932 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:30,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1492301748, now seen corresponding path program 1 times [2023-12-21 09:28:30,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:30,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403145261] [2023-12-21 09:28:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:30,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:28:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:28:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:28:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:28:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:28:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:28:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:28:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-21 09:28:31,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:31,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403145261] [2023-12-21 09:28:31,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403145261] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:28:31,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436485570] [2023-12-21 09:28:31,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:31,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:28:31,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:28:31,134 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:28:31,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 09:28:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:31,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 09:28:31,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:28:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 09:28:31,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:28:31,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436485570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:31,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:28:31,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2023-12-21 09:28:31,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896031712] [2023-12-21 09:28:31,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:31,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:28:31,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:31,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:28:31,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2023-12-21 09:28:31,530 INFO L87 Difference]: Start difference. First operand 126268 states and 209127 transitions. Second operand has 11 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-21 09:28:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:33,780 INFO L93 Difference]: Finished difference Result 126884 states and 210054 transitions. [2023-12-21 09:28:33,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 09:28:33,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 103 [2023-12-21 09:28:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:34,069 INFO L225 Difference]: With dead ends: 126884 [2023-12-21 09:28:34,070 INFO L226 Difference]: Without dead ends: 126270 [2023-12-21 09:28:34,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=1006, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 09:28:34,093 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 548 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:34,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 2320 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 09:28:34,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126270 states. [2023-12-21 09:28:36,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126270 to 126237. [2023-12-21 09:28:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126237 states, 119556 states have (on average 1.6377429823680953) internal successors, (195802), 119575 states have internal predecessors, (195802), 6600 states have call successors, (6600), 66 states have call predecessors, (6600), 80 states have return successors, (6669), 6595 states have call predecessors, (6669), 6582 states have call successors, (6669) [2023-12-21 09:28:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126237 states to 126237 states and 209071 transitions. [2023-12-21 09:28:37,379 INFO L78 Accepts]: Start accepts. Automaton has 126237 states and 209071 transitions. Word has length 103 [2023-12-21 09:28:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:37,379 INFO L495 AbstractCegarLoop]: Abstraction has 126237 states and 209071 transitions. [2023-12-21 09:28:37,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2023-12-21 09:28:37,379 INFO L276 IsEmpty]: Start isEmpty. Operand 126237 states and 209071 transitions. [2023-12-21 09:28:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 09:28:37,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:28:37,464 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:28:37,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 09:28:37,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-21 09:28:37,668 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:28:37,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:28:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1561758129, now seen corresponding path program 1 times [2023-12-21 09:28:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:28:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979914456] [2023-12-21 09:28:37,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:28:37,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:28:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:28:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:28:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 09:28:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:28:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:28:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:28:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:28:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:28:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:28:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:28:37,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:28:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-21 09:28:37,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:28:37,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979914456] [2023-12-21 09:28:37,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979914456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:28:37,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:28:37,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:28:37,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927890147] [2023-12-21 09:28:37,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:28:37,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:28:37,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:28:37,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:28:37,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:28:37,818 INFO L87 Difference]: Start difference. First operand 126237 states and 209071 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-21 09:28:40,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:28:40,761 INFO L93 Difference]: Finished difference Result 127112 states and 210602 transitions. [2023-12-21 09:28:40,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 09:28:40,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 109 [2023-12-21 09:28:40,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:28:40,762 INFO L225 Difference]: With dead ends: 127112 [2023-12-21 09:28:40,762 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 09:28:40,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2023-12-21 09:28:40,823 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 524 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:28:40,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 626 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 09:28:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 09:28:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 09:28:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 09:28:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 09:28:40,827 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2023-12-21 09:28:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:28:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 09:28:40,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-12-21 09:28:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 09:28:40,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 09:28:40,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 09:28:40,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 09:28:40,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 09:31:57,838 WARN L293 SmtUtils]: Spent 2.69m on a formula simplification. DAG size of input: 2183 DAG size of output: 2180 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-21 09:41:55,927 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 09:41:56,041 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-4469-19-1 term,while PolyPacSimplificationTermWalker was simplifying 10 xjuncts wrt. a ∧-4468-16-1 context. [2023-12-21 09:41:56,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 09:41:56,059 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-21 09:41:56,060 INFO L158 Benchmark]: Toolchain (without parser) took 858739.28ms. Allocated memory was 196.1MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 150.2MB in the beginning and 833.3MB in the end (delta: -683.1MB). Peak memory consumption was 6.9GB. Max. memory is 8.0GB. [2023-12-21 09:41:56,060 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 196.1MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 09:41:56,060 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.51ms. Allocated memory is still 196.1MB. Free memory was 150.2MB in the beginning and 112.2MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2023-12-21 09:41:56,062 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.04ms. Allocated memory is still 196.1MB. Free memory was 112.2MB in the beginning and 107.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 09:41:56,062 INFO L158 Benchmark]: Boogie Preprocessor took 69.81ms. Allocated memory is still 196.1MB. Free memory was 107.6MB in the beginning and 162.7MB in the end (delta: -55.1MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. [2023-12-21 09:41:56,062 INFO L158 Benchmark]: RCFGBuilder took 588.23ms. Allocated memory is still 196.1MB. Free memory was 162.7MB in the beginning and 111.3MB in the end (delta: 51.4MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. [2023-12-21 09:41:56,062 INFO L158 Benchmark]: TraceAbstraction took 857391.53ms. Allocated memory was 196.1MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 110.8MB in the beginning and 833.3MB in the end (delta: -722.5MB). Peak memory consumption was 6.9GB. Max. memory is 8.0GB. [2023-12-21 09:41:56,065 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 196.1MB. Free memory is still 147.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 617.51ms. Allocated memory is still 196.1MB. Free memory was 150.2MB in the beginning and 112.2MB in the end (delta: 38.1MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.04ms. Allocated memory is still 196.1MB. Free memory was 112.2MB in the beginning and 107.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.81ms. Allocated memory is still 196.1MB. Free memory was 107.6MB in the beginning and 162.7MB in the end (delta: -55.1MB). Peak memory consumption was 13.9MB. Max. memory is 8.0GB. * RCFGBuilder took 588.23ms. Allocated memory is still 196.1MB. Free memory was 162.7MB in the beginning and 111.3MB in the end (delta: 51.4MB). Peak memory consumption was 51.4MB. Max. memory is 8.0GB. * TraceAbstraction took 857391.53ms. Allocated memory was 196.1MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 110.8MB in the beginning and 833.3MB in the end (delta: -722.5MB). Peak memory consumption was 6.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] - GenericResultAtLocation [Line: 246]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [246] - GenericResultAtLocation [Line: 295]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [295] - GenericResultAtLocation [Line: 448]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [448] - GenericResultAtLocation [Line: 860]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [860] - GenericResultAtLocation [Line: 1226]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1226] - GenericResultAtLocation [Line: 2301]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2301] - GenericResultAtLocation [Line: 2503]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2503] - GenericResultAtLocation [Line: 2567]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2567] - GenericResultAtLocation [Line: 2584]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2584] - GenericResultAtLocation [Line: 2593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2593] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∧-7-1 term,while PolyPacSimplificationTermWalker was simplifying 7 xjuncts wrt. a ATOM-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown