./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:35:01,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:35:01,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:35:01,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:35:01,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:35:01,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:35:01,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:35:01,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:35:01,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:35:01,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:35:01,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:35:01,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:35:01,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:35:01,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:35:01,938 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:35:01,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:35:01,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:35:01,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:35:01,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:35:01,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:35:01,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:35:01,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:35:01,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:35:01,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:35:01,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:35:01,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:35:01,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:35:01,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:35:01,948 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:35:01,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:35:01,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:35:01,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:35:01,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:35:01,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:35:01,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:35:01,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:35:01,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:35:01,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:35:01,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:35:01,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:35:01,951 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:35:01,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:35:01,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 [2024-11-11 20:35:02,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:35:02,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:35:02,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:35:02,249 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:35:02,249 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:35:02,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2024-11-11 20:35:03,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:35:04,016 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:35:04,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2024-11-11 20:35:04,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfc0473b/05177cdd05534c87a11a1d08b7443586/FLAG303c9c4d4 [2024-11-11 20:35:04,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfc0473b/05177cdd05534c87a11a1d08b7443586 [2024-11-11 20:35:04,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:35:04,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:35:04,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:35:04,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:35:04,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:35:04,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:04,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16307d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04, skipping insertion in model container [2024-11-11 20:35:04,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:04,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:35:04,622 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2024-11-11 20:35:04,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:35:04,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:35:04,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-11 20:35:04,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [167] [2024-11-11 20:35:04,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [467] [2024-11-11 20:35:04,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [505] [2024-11-11 20:35:04,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [797] [2024-11-11 20:35:04,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1864] [2024-11-11 20:35:04,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1873] [2024-11-11 20:35:04,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1890] [2024-11-11 20:35:04,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2106] [2024-11-11 20:35:04,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2125] [2024-11-11 20:35:04,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2491] [2024-11-11 20:35:04,818 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2024-11-11 20:35:04,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:35:04,899 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:35:04,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04 WrapperNode [2024-11-11 20:35:04,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:35:04,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:35:04,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:35:04,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:35:04,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:04,940 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:04,988 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1002 [2024-11-11 20:35:04,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:35:04,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:35:04,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:35:04,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:35:05,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,041 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-11 20:35:05,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:35:05,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:35:05,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:35:05,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:35:05,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (1/1) ... [2024-11-11 20:35:05,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:35:05,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:05,159 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) [2024-11-11 20:35:05,166 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 [2024-11-11 20:35:05,214 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-11 20:35:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-11 20:35:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-11 20:35:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-11 20:35:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-11 20:35:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-11 20:35:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-11 20:35:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-11 20:35:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-11 20:35:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-11 20:35:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-11 20:35:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-11 20:35:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-11 20:35:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-11 20:35:05,218 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-11 20:35:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-11 20:35:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:35:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-11 20:35:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-11 20:35:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-11 20:35:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-11 20:35:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-11 20:35:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-11 20:35:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-11 20:35:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-11 20:35:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-11 20:35:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-11 20:35:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-11 20:35:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-11 20:35:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-11 20:35:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-11 20:35:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:35:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:35:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:35:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:35:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-11 20:35:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-11 20:35:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:35:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:35:05,456 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:35:05,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:35:06,344 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-11-11 20:35:06,344 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:35:06,362 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:35:06,363 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:35:06,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:35:06 BoogieIcfgContainer [2024-11-11 20:35:06,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:35:06,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:35:06,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:35:06,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:35:06,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:35:04" (1/3) ... [2024-11-11 20:35:06,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc0558b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:35:06, skipping insertion in model container [2024-11-11 20:35:06,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:04" (2/3) ... [2024-11-11 20:35:06,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc0558b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:35:06, skipping insertion in model container [2024-11-11 20:35:06,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:35:06" (3/3) ... [2024-11-11 20:35:06,371 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2024-11-11 20:35:06,388 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:35:06,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:35:06,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:35:06,481 INFO L333 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, 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;@287320d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:35:06,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:35:06,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 241 states have (on average 1.5352697095435686) internal successors, (370), 243 states have internal predecessors, (370), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-11 20:35:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-11 20:35:06,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:06,507 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:06,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:06,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:06,514 INFO L85 PathProgramCache]: Analyzing trace with hash -756518862, now seen corresponding path program 1 times [2024-11-11 20:35:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:06,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986779834] [2024-11-11 20:35:06,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:06,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:35:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:35:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:35:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:35:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-11 20:35:07,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:07,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986779834] [2024-11-11 20:35:07,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986779834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:07,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112957121] [2024-11-11 20:35:07,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:07,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:07,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:07,371 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) [2024-11-11 20:35:07,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 20:35:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:07,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:35:07,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-11 20:35:07,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:07,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112957121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:07,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:07,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-11 20:35:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911621111] [2024-11-11 20:35:07,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:07,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:35:07,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:07,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:35:07,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:07,795 INFO L87 Difference]: Start difference. First operand has 301 states, 241 states have (on average 1.5352697095435686) internal successors, (370), 243 states have internal predecessors, (370), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:07,850 INFO L93 Difference]: Finished difference Result 448 states and 662 transitions. [2024-11-11 20:35:07,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:35:07,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-11 20:35:07,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:07,867 INFO L225 Difference]: With dead ends: 448 [2024-11-11 20:35:07,867 INFO L226 Difference]: Without dead ends: 294 [2024-11-11 20:35:07,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:07,874 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:07,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-11 20:35:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-11-11 20:35:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 235 states have (on average 1.5276595744680852) internal successors, (359), 236 states have internal predecessors, (359), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-11 20:35:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 442 transitions. [2024-11-11 20:35:07,940 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 442 transitions. Word has length 104 [2024-11-11 20:35:07,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:07,942 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 442 transitions. [2024-11-11 20:35:07,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:07,942 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 442 transitions. [2024-11-11 20:35:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-11 20:35:07,948 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:07,948 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:07,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 20:35:08,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-11 20:35:08,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:08,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:08,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2087935493, now seen corresponding path program 1 times [2024-11-11 20:35:08,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:08,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370402724] [2024-11-11 20:35:08,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:08,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:35:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:35:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:35:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:35:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-11 20:35:08,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370402724] [2024-11-11 20:35:08,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370402724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61770459] [2024-11-11 20:35:08,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:08,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:08,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:08,571 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) [2024-11-11 20:35:08,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 20:35:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:35:08,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:08,914 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-11 20:35:08,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:08,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61770459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:08,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:08,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:35:08,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166928841] [2024-11-11 20:35:08,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:08,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:35:08,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:08,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:35:08,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:08,921 INFO L87 Difference]: Start difference. First operand 294 states and 442 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:08,963 INFO L93 Difference]: Finished difference Result 438 states and 643 transitions. [2024-11-11 20:35:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:35:08,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2024-11-11 20:35:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:08,967 INFO L225 Difference]: With dead ends: 438 [2024-11-11 20:35:08,967 INFO L226 Difference]: Without dead ends: 297 [2024-11-11 20:35:08,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:08,970 INFO L435 NwaCegarLoop]: 440 mSDtfsCounter, 1 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:08,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 878 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:08,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-11-11 20:35:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 296. [2024-11-11 20:35:08,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 237 states have (on average 1.5232067510548524) internal successors, (361), 238 states have internal predecessors, (361), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-11 20:35:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 444 transitions. [2024-11-11 20:35:08,991 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 444 transitions. Word has length 105 [2024-11-11 20:35:08,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:08,991 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 444 transitions. [2024-11-11 20:35:08,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 444 transitions. [2024-11-11 20:35:08,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 20:35:08,995 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:08,996 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:09,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 20:35:09,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-11 20:35:09,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:09,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:09,198 INFO L85 PathProgramCache]: Analyzing trace with hash 681092572, now seen corresponding path program 1 times [2024-11-11 20:35:09,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:09,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189561929] [2024-11-11 20:35:09,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:09,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:35:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:35:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:35:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:35:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:35:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:35:09,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189561929] [2024-11-11 20:35:09,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189561929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:09,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312406713] [2024-11-11 20:35:09,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:09,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:09,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:09,512 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) [2024-11-11 20:35:09,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 20:35:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:09,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:35:09,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-11 20:35:09,837 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:09,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312406713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:09,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:35:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099393456] [2024-11-11 20:35:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:09,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:35:09,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:35:09,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:09,839 INFO L87 Difference]: Start difference. First operand 296 states and 444 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:09,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:09,865 INFO L93 Difference]: Finished difference Result 622 states and 947 transitions. [2024-11-11 20:35:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:35:09,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-11 20:35:09,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:09,868 INFO L225 Difference]: With dead ends: 622 [2024-11-11 20:35:09,868 INFO L226 Difference]: Without dead ends: 353 [2024-11-11 20:35:09,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:09,871 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 107 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:09,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 850 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:09,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-11 20:35:09,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 345. [2024-11-11 20:35:09,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 275 states have (on average 1.538181818181818) internal successors, (423), 276 states have internal predecessors, (423), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-11 20:35:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 528 transitions. [2024-11-11 20:35:09,895 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 528 transitions. Word has length 111 [2024-11-11 20:35:09,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:09,896 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 528 transitions. [2024-11-11 20:35:09,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 528 transitions. [2024-11-11 20:35:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 20:35:09,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:09,901 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:09,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 20:35:10,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:10,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:10,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:10,103 INFO L85 PathProgramCache]: Analyzing trace with hash 740763177, now seen corresponding path program 1 times [2024-11-11 20:35:10,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:10,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651630343] [2024-11-11 20:35:10,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:10,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:35:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:35:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:35:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:35:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:35:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:35:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:35:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:35:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:35:10,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:10,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651630343] [2024-11-11 20:35:10,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651630343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:10,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507126269] [2024-11-11 20:35:10,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:10,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:10,346 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) [2024-11-11 20:35:10,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 20:35:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 20:35:10,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:35:10,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:10,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507126269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:10,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:10,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-11 20:35:10,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360167954] [2024-11-11 20:35:10,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:10,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:10,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:10,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:10,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:10,721 INFO L87 Difference]: Start difference. First operand 345 states and 528 transitions. Second operand has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:10,797 INFO L93 Difference]: Finished difference Result 681 states and 1046 transitions. [2024-11-11 20:35:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:10,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-11 20:35:10,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:10,803 INFO L225 Difference]: With dead ends: 681 [2024-11-11 20:35:10,803 INFO L226 Difference]: Without dead ends: 347 [2024-11-11 20:35:10,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:10,807 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 2 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:10,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1725 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-11 20:35:10,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-11-11 20:35:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 276 states have (on average 1.536231884057971) internal successors, (424), 278 states have internal predecessors, (424), 53 states have call successors, (53), 16 states have call predecessors, (53), 17 states have return successors, (54), 52 states have call predecessors, (54), 52 states have call successors, (54) [2024-11-11 20:35:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 531 transitions. [2024-11-11 20:35:10,842 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 531 transitions. Word has length 112 [2024-11-11 20:35:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:10,843 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 531 transitions. [2024-11-11 20:35:10,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 531 transitions. [2024-11-11 20:35:10,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 20:35:10,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:10,847 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:10,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 20:35:11,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:11,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:11,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:11,049 INFO L85 PathProgramCache]: Analyzing trace with hash 704008068, now seen corresponding path program 1 times [2024-11-11 20:35:11,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:11,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194729679] [2024-11-11 20:35:11,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:11,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:35:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:35:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:35:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:35:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:35:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:35:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,355 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:35:11,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:11,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194729679] [2024-11-11 20:35:11,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194729679] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:11,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878940821] [2024-11-11 20:35:11,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:11,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:11,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:11,358 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) [2024-11-11 20:35:11,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 20:35:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:35:11,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:11,718 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:35:11,718 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:11,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878940821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:11,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:11,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-11 20:35:11,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316920740] [2024-11-11 20:35:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:11,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:11,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:35:11,725 INFO L87 Difference]: Start difference. First operand 347 states and 531 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:11,789 INFO L93 Difference]: Finished difference Result 683 states and 1051 transitions. [2024-11-11 20:35:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:11,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-11 20:35:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:11,795 INFO L225 Difference]: With dead ends: 683 [2024-11-11 20:35:11,796 INFO L226 Difference]: Without dead ends: 349 [2024-11-11 20:35:11,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:35:11,798 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 2 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:11,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1711 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:11,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-11 20:35:11,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-11-11 20:35:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.5342960288808665) internal successors, (425), 280 states have internal predecessors, (425), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-11-11 20:35:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 537 transitions. [2024-11-11 20:35:11,825 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 537 transitions. Word has length 113 [2024-11-11 20:35:11,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:11,826 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 537 transitions. [2024-11-11 20:35:11,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 537 transitions. [2024-11-11 20:35:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:35:11,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:11,829 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:11,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-11 20:35:12,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:12,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:12,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash 857466609, now seen corresponding path program 1 times [2024-11-11 20:35:12,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017070726] [2024-11-11 20:35:12,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:35:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:35:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:35:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:35:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:35:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:35:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:12,270 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:35:12,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:12,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017070726] [2024-11-11 20:35:12,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017070726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:12,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:12,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:35:12,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119915748] [2024-11-11 20:35:12,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:12,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:35:12,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:12,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:35:12,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:12,273 INFO L87 Difference]: Start difference. First operand 349 states and 537 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:14,261 INFO L93 Difference]: Finished difference Result 843 states and 1294 transitions. [2024-11-11 20:35:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:35:14,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-11 20:35:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:14,267 INFO L225 Difference]: With dead ends: 843 [2024-11-11 20:35:14,267 INFO L226 Difference]: Without dead ends: 517 [2024-11-11 20:35:14,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:35:14,271 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 972 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:14,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 1108 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 20:35:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-11-11 20:35:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 349. [2024-11-11 20:35:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 277 states have (on average 1.5342960288808665) internal successors, (425), 280 states have internal predecessors, (425), 53 states have call successors, (53), 16 states have call predecessors, (53), 18 states have return successors, (58), 52 states have call predecessors, (58), 52 states have call successors, (58) [2024-11-11 20:35:14,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 536 transitions. [2024-11-11 20:35:14,301 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 536 transitions. Word has length 114 [2024-11-11 20:35:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:14,302 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 536 transitions. [2024-11-11 20:35:14,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 536 transitions. [2024-11-11 20:35:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-11 20:35:14,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:14,304 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:14,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:35:14,305 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:14,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash 748732846, now seen corresponding path program 2 times [2024-11-11 20:35:14,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:14,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006064111] [2024-11-11 20:35:14,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:35:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:35:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:35:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:35:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:35:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:35:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:35:14,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:14,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006064111] [2024-11-11 20:35:14,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006064111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:14,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:14,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:35:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035027198] [2024-11-11 20:35:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:14,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:35:14,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:14,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:35:14,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:35:14,528 INFO L87 Difference]: Start difference. First operand 349 states and 536 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:16,381 INFO L93 Difference]: Finished difference Result 845 states and 1297 transitions. [2024-11-11 20:35:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:35:16,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-11 20:35:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:16,385 INFO L225 Difference]: With dead ends: 845 [2024-11-11 20:35:16,386 INFO L226 Difference]: Without dead ends: 519 [2024-11-11 20:35:16,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:35:16,390 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 992 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:16,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1108 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 20:35:16,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-11 20:35:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 351. [2024-11-11 20:35:16,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 278 states have (on average 1.5323741007194245) internal successors, (426), 282 states have internal predecessors, (426), 53 states have call successors, (53), 16 states have call predecessors, (53), 19 states have return successors, (60), 52 states have call predecessors, (60), 52 states have call successors, (60) [2024-11-11 20:35:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 539 transitions. [2024-11-11 20:35:16,427 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 539 transitions. Word has length 115 [2024-11-11 20:35:16,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:16,427 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 539 transitions. [2024-11-11 20:35:16,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-11 20:35:16,428 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 539 transitions. [2024-11-11 20:35:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-11 20:35:16,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:16,430 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:16,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:35:16,431 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:16,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:16,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1183302676, now seen corresponding path program 1 times [2024-11-11 20:35:16,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:16,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495227979] [2024-11-11 20:35:16,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:16,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:35:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:35:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:35:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:35:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:35:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:16,679 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:35:16,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:16,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495227979] [2024-11-11 20:35:16,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495227979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:16,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:16,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:35:16,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075620622] [2024-11-11 20:35:16,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:16,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:16,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:16,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:16,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:16,682 INFO L87 Difference]: Start difference. First operand 351 states and 539 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:35:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:19,148 INFO L93 Difference]: Finished difference Result 843 states and 1292 transitions. [2024-11-11 20:35:19,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:35:19,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2024-11-11 20:35:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:19,152 INFO L225 Difference]: With dead ends: 843 [2024-11-11 20:35:19,152 INFO L226 Difference]: Without dead ends: 519 [2024-11-11 20:35:19,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:35:19,155 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 954 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:19,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 1535 Invalid, 4234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 3968 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 20:35:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-11-11 20:35:19,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 351. [2024-11-11 20:35:19,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 278 states have (on average 1.5323741007194245) internal successors, (426), 282 states have internal predecessors, (426), 53 states have call successors, (53), 16 states have call predecessors, (53), 19 states have return successors, (59), 52 states have call predecessors, (59), 52 states have call successors, (59) [2024-11-11 20:35:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 538 transitions. [2024-11-11 20:35:19,186 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 538 transitions. Word has length 116 [2024-11-11 20:35:19,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:19,186 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 538 transitions. [2024-11-11 20:35:19,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:35:19,187 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 538 transitions. [2024-11-11 20:35:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-11 20:35:19,188 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:19,189 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:19,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:35:19,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:19,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash 158463807, now seen corresponding path program 2 times [2024-11-11 20:35:19,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:19,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416636704] [2024-11-11 20:35:19,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:19,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:35:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:35:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:35:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:35:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:35:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:19,433 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:35:19,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:19,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416636704] [2024-11-11 20:35:19,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416636704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:19,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:19,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:35:19,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876092251] [2024-11-11 20:35:19,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:19,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:19,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:19,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:19,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:35:19,435 INFO L87 Difference]: Start difference. First operand 351 states and 538 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:35:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:21,854 INFO L93 Difference]: Finished difference Result 845 states and 1298 transitions. [2024-11-11 20:35:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:35:21,855 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 117 [2024-11-11 20:35:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:21,858 INFO L225 Difference]: With dead ends: 845 [2024-11-11 20:35:21,859 INFO L226 Difference]: Without dead ends: 521 [2024-11-11 20:35:21,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:35:21,861 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 990 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3816 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 4096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 3816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:21,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 1536 Invalid, 4096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 3816 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 20:35:21,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-11 20:35:21,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 353. [2024-11-11 20:35:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 279 states have (on average 1.5304659498207884) internal successors, (427), 284 states have internal predecessors, (427), 53 states have call successors, (53), 16 states have call predecessors, (53), 20 states have return successors, (64), 52 states have call predecessors, (64), 52 states have call successors, (64) [2024-11-11 20:35:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 544 transitions. [2024-11-11 20:35:21,897 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 544 transitions. Word has length 117 [2024-11-11 20:35:21,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:21,898 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 544 transitions. [2024-11-11 20:35:21,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-11 20:35:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 544 transitions. [2024-11-11 20:35:21,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-11 20:35:21,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:21,902 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:21,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:35:21,902 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:21,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:21,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1021608935, now seen corresponding path program 1 times [2024-11-11 20:35:21,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:21,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359932407] [2024-11-11 20:35:21,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:35:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:35:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:35:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:35:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359932407] [2024-11-11 20:35:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359932407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:22,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197335234] [2024-11-11 20:35:22,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:22,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:22,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:22,079 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) [2024-11-11 20:35:22,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 20:35:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:22,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:35:22,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:22,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:35:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:22,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197335234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:35:22,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:35:22,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-11 20:35:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634055220] [2024-11-11 20:35:22,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:35:22,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:35:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:22,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:35:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:35:22,500 INFO L87 Difference]: Start difference. First operand 353 states and 544 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-11 20:35:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:23,797 INFO L93 Difference]: Finished difference Result 1014 states and 1626 transitions. [2024-11-11 20:35:23,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:35:23,798 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 118 [2024-11-11 20:35:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:23,803 INFO L225 Difference]: With dead ends: 1014 [2024-11-11 20:35:23,804 INFO L226 Difference]: Without dead ends: 873 [2024-11-11 20:35:23,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:35:23,806 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 1580 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:23,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 1299 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-11 20:35:23,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 681. [2024-11-11 20:35:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 543 states have (on average 1.5930018416206262) internal successors, (865), 548 states have internal predecessors, (865), 117 states have call successors, (117), 16 states have call predecessors, (117), 20 states have return successors, (138), 116 states have call predecessors, (138), 116 states have call successors, (138) [2024-11-11 20:35:23,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 1120 transitions. [2024-11-11 20:35:23,844 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 1120 transitions. Word has length 118 [2024-11-11 20:35:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:23,845 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 1120 transitions. [2024-11-11 20:35:23,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-11 20:35:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 1120 transitions. [2024-11-11 20:35:23,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 20:35:23,849 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:23,849 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:23,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 20:35:24,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:24,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:24,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1951274134, now seen corresponding path program 1 times [2024-11-11 20:35:24,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:24,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721586765] [2024-11-11 20:35:24,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:24,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:35:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:35:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:35:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:35:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:24,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:24,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721586765] [2024-11-11 20:35:24,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721586765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:24,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:24,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:24,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991723352] [2024-11-11 20:35:24,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:24,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:24,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:24,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:24,166 INFO L87 Difference]: Start difference. First operand 681 states and 1120 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:25,386 INFO L93 Difference]: Finished difference Result 1795 states and 2997 transitions. [2024-11-11 20:35:25,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:25,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-11 20:35:25,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:25,393 INFO L225 Difference]: With dead ends: 1795 [2024-11-11 20:35:25,393 INFO L226 Difference]: Without dead ends: 1182 [2024-11-11 20:35:25,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:25,397 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 1071 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:25,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 850 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:25,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2024-11-11 20:35:25,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1006. [2024-11-11 20:35:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 804 states have (on average 1.6044776119402986) internal successors, (1290), 809 states have internal predecessors, (1290), 181 states have call successors, (181), 16 states have call predecessors, (181), 20 states have return successors, (212), 180 states have call predecessors, (212), 180 states have call successors, (212) [2024-11-11 20:35:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1683 transitions. [2024-11-11 20:35:25,447 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1683 transitions. Word has length 124 [2024-11-11 20:35:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:25,448 INFO L471 AbstractCegarLoop]: Abstraction has 1006 states and 1683 transitions. [2024-11-11 20:35:25,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1683 transitions. [2024-11-11 20:35:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-11 20:35:25,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:25,454 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:25,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 20:35:25,454 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:25,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:25,454 INFO L85 PathProgramCache]: Analyzing trace with hash 681143198, now seen corresponding path program 1 times [2024-11-11 20:35:25,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:25,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460957639] [2024-11-11 20:35:25,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:25,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:35:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:35:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:35:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:35:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:35:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:25,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:25,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460957639] [2024-11-11 20:35:25,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460957639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:25,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:25,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:25,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011271053] [2024-11-11 20:35:25,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:25,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:25,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:25,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:25,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:25,614 INFO L87 Difference]: Start difference. First operand 1006 states and 1683 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:26,773 INFO L93 Difference]: Finished difference Result 2575 states and 4346 transitions. [2024-11-11 20:35:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-11 20:35:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:26,783 INFO L225 Difference]: With dead ends: 2575 [2024-11-11 20:35:26,783 INFO L226 Difference]: Without dead ends: 1690 [2024-11-11 20:35:26,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:26,788 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 1093 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:26,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 817 Invalid, 1635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:26,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2024-11-11 20:35:26,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1514. [2024-11-11 20:35:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1217 states have (on average 1.6113393590797043) internal successors, (1961), 1222 states have internal predecessors, (1961), 276 states have call successors, (276), 16 states have call predecessors, (276), 20 states have return successors, (307), 275 states have call predecessors, (307), 275 states have call successors, (307) [2024-11-11 20:35:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2544 transitions. [2024-11-11 20:35:26,890 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2544 transitions. Word has length 125 [2024-11-11 20:35:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:26,890 INFO L471 AbstractCegarLoop]: Abstraction has 1514 states and 2544 transitions. [2024-11-11 20:35:26,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:26,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2544 transitions. [2024-11-11 20:35:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-11 20:35:26,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:26,899 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 20:35:26,899 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:26,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:26,899 INFO L85 PathProgramCache]: Analyzing trace with hash -64126520, now seen corresponding path program 1 times [2024-11-11 20:35:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950014173] [2024-11-11 20:35:26,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:26,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:35:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:26,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:35:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:35:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:35:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:35:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:27,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:27,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950014173] [2024-11-11 20:35:27,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950014173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:27,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:27,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:27,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522478199] [2024-11-11 20:35:27,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:27,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:27,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:27,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:27,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:27,011 INFO L87 Difference]: Start difference. First operand 1514 states and 2544 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:28,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:28,257 INFO L93 Difference]: Finished difference Result 3727 states and 6355 transitions. [2024-11-11 20:35:28,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:28,258 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-11 20:35:28,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:28,271 INFO L225 Difference]: With dead ends: 3727 [2024-11-11 20:35:28,271 INFO L226 Difference]: Without dead ends: 2459 [2024-11-11 20:35:28,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:28,277 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1072 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:28,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 811 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:28,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-11 20:35:28,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2283. [2024-11-11 20:35:28,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 1863 states have (on average 1.6167471819645733) internal successors, (3012), 1868 states have internal predecessors, (3012), 399 states have call successors, (399), 16 states have call predecessors, (399), 20 states have return successors, (446), 398 states have call predecessors, (446), 398 states have call successors, (446) [2024-11-11 20:35:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 3857 transitions. [2024-11-11 20:35:28,392 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 3857 transitions. Word has length 126 [2024-11-11 20:35:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:28,393 INFO L471 AbstractCegarLoop]: Abstraction has 2283 states and 3857 transitions. [2024-11-11 20:35:28,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:28,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 3857 transitions. [2024-11-11 20:35:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 20:35:28,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:28,404 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:28,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 20:35:28,404 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:28,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash -793686243, now seen corresponding path program 1 times [2024-11-11 20:35:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:28,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054587446] [2024-11-11 20:35:28,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:35:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:35:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:35:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:35:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,525 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:28,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:28,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054587446] [2024-11-11 20:35:28,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054587446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:28,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:28,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:28,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902568533] [2024-11-11 20:35:28,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:28,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:28,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:28,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:28,528 INFO L87 Difference]: Start difference. First operand 2283 states and 3857 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:29,854 INFO L93 Difference]: Finished difference Result 5521 states and 9489 transitions. [2024-11-11 20:35:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-11 20:35:29,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:29,875 INFO L225 Difference]: With dead ends: 5521 [2024-11-11 20:35:29,875 INFO L226 Difference]: Without dead ends: 3688 [2024-11-11 20:35:29,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:29,882 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1088 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:29,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 811 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:29,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-11 20:35:30,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3512. [2024-11-11 20:35:30,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 2913 states have (on average 1.619979402677652) internal successors, (4719), 2918 states have internal predecessors, (4719), 578 states have call successors, (578), 16 states have call predecessors, (578), 20 states have return successors, (651), 577 states have call predecessors, (651), 577 states have call successors, (651) [2024-11-11 20:35:30,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 5948 transitions. [2024-11-11 20:35:30,029 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 5948 transitions. Word has length 127 [2024-11-11 20:35:30,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:30,030 INFO L471 AbstractCegarLoop]: Abstraction has 3512 states and 5948 transitions. [2024-11-11 20:35:30,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:30,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 5948 transitions. [2024-11-11 20:35:30,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-11 20:35:30,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:30,042 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:30,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:35:30,043 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:30,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1926920396, now seen corresponding path program 1 times [2024-11-11 20:35:30,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:30,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250153443] [2024-11-11 20:35:30,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:30,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:35:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:35:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:35:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:35:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:35:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:30,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:30,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250153443] [2024-11-11 20:35:30,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250153443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:30,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:30,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:30,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853720359] [2024-11-11 20:35:30,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:30,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:30,195 INFO L87 Difference]: Start difference. First operand 3512 states and 5948 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:31,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:31,514 INFO L93 Difference]: Finished difference Result 8469 states and 14636 transitions. [2024-11-11 20:35:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:31,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-11 20:35:31,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:31,542 INFO L225 Difference]: With dead ends: 8469 [2024-11-11 20:35:31,543 INFO L226 Difference]: Without dead ends: 5719 [2024-11-11 20:35:31,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:31,551 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 1092 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:31,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 846 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5719 states. [2024-11-11 20:35:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5719 to 5543. [2024-11-11 20:35:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5543 states, 4568 states have (on average 1.6136164623467601) internal successors, (7371), 4573 states have internal predecessors, (7371), 954 states have call successors, (954), 16 states have call predecessors, (954), 20 states have return successors, (1071), 953 states have call predecessors, (1071), 953 states have call successors, (1071) [2024-11-11 20:35:31,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 9396 transitions. [2024-11-11 20:35:31,806 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 9396 transitions. Word has length 128 [2024-11-11 20:35:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:31,807 INFO L471 AbstractCegarLoop]: Abstraction has 5543 states and 9396 transitions. [2024-11-11 20:35:31,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:31,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 9396 transitions. [2024-11-11 20:35:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-11 20:35:31,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:31,826 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:31,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 20:35:31,826 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:31,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:31,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1737890841, now seen corresponding path program 1 times [2024-11-11 20:35:31,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:31,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31653657] [2024-11-11 20:35:31,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:31,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:35:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:35:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:35:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:35:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:31,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:31,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31653657] [2024-11-11 20:35:31,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31653657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:31,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:31,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:31,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613489385] [2024-11-11 20:35:31,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:31,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:31,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:31,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:31,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:31,953 INFO L87 Difference]: Start difference. First operand 5543 states and 9396 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:33,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:33,333 INFO L93 Difference]: Finished difference Result 13806 states and 23857 transitions. [2024-11-11 20:35:33,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:33,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-11 20:35:33,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:33,385 INFO L225 Difference]: With dead ends: 13806 [2024-11-11 20:35:33,385 INFO L226 Difference]: Without dead ends: 9402 [2024-11-11 20:35:33,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:33,449 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 1085 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 1641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:33,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 813 Invalid, 1641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:33,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9402 states. [2024-11-11 20:35:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9402 to 9226. [2024-11-11 20:35:33,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9226 states, 7645 states have (on average 1.6111183780248528) internal successors, (12317), 7650 states have internal predecessors, (12317), 1560 states have call successors, (1560), 16 states have call predecessors, (1560), 20 states have return successors, (1755), 1559 states have call predecessors, (1755), 1559 states have call successors, (1755) [2024-11-11 20:35:33,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9226 states to 9226 states and 15632 transitions. [2024-11-11 20:35:33,825 INFO L78 Accepts]: Start accepts. Automaton has 9226 states and 15632 transitions. Word has length 129 [2024-11-11 20:35:33,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:33,825 INFO L471 AbstractCegarLoop]: Abstraction has 9226 states and 15632 transitions. [2024-11-11 20:35:33,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 9226 states and 15632 transitions. [2024-11-11 20:35:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-11 20:35:33,853 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:33,853 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:33,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 20:35:33,853 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:33,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:33,854 INFO L85 PathProgramCache]: Analyzing trace with hash 294042718, now seen corresponding path program 1 times [2024-11-11 20:35:33,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:33,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542888290] [2024-11-11 20:35:33,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:33,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:33,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:35:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:35:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:35:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 20:35:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:34,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542888290] [2024-11-11 20:35:34,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542888290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:34,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:34,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932059777] [2024-11-11 20:35:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:34,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:34,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:34,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:34,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:34,021 INFO L87 Difference]: Start difference. First operand 9226 states and 15632 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:35,359 INFO L93 Difference]: Finished difference Result 23990 states and 41403 transitions. [2024-11-11 20:35:35,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:35,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2024-11-11 20:35:35,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:35,430 INFO L225 Difference]: With dead ends: 23990 [2024-11-11 20:35:35,430 INFO L226 Difference]: Without dead ends: 16355 [2024-11-11 20:35:35,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:35,462 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 1048 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:35,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 841 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:35,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16355 states. [2024-11-11 20:35:36,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16355 to 16179. [2024-11-11 20:35:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16179 states, 13395 states have (on average 1.6020156774916015) internal successors, (21459), 13400 states have internal predecessors, (21459), 2763 states have call successors, (2763), 16 states have call predecessors, (2763), 20 states have return successors, (3102), 2762 states have call predecessors, (3102), 2762 states have call successors, (3102) [2024-11-11 20:35:36,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16179 states to 16179 states and 27324 transitions. [2024-11-11 20:35:36,278 INFO L78 Accepts]: Start accepts. Automaton has 16179 states and 27324 transitions. Word has length 130 [2024-11-11 20:35:36,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:36,278 INFO L471 AbstractCegarLoop]: Abstraction has 16179 states and 27324 transitions. [2024-11-11 20:35:36,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 16179 states and 27324 transitions. [2024-11-11 20:35:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 20:35:36,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:36,313 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:36,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 20:35:36,314 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:36,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash -624018824, now seen corresponding path program 1 times [2024-11-11 20:35:36,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:36,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345196808] [2024-11-11 20:35:36,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:35:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:35:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:35:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:35:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,579 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:36,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:36,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345196808] [2024-11-11 20:35:36,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345196808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:36,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:36,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:36,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410750667] [2024-11-11 20:35:36,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:36,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:36,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:36,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:36,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:36,582 INFO L87 Difference]: Start difference. First operand 16179 states and 27324 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:38,214 INFO L93 Difference]: Finished difference Result 42956 states and 74002 transitions. [2024-11-11 20:35:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:38,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 131 [2024-11-11 20:35:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:38,366 INFO L225 Difference]: With dead ends: 42956 [2024-11-11 20:35:38,366 INFO L226 Difference]: Without dead ends: 29010 [2024-11-11 20:35:38,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:38,425 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1042 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:38,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 810 Invalid, 1690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:38,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29010 states. [2024-11-11 20:35:39,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29010 to 28834. [2024-11-11 20:35:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28834 states, 24011 states have (on average 1.5977260422306443) internal successors, (38363), 24016 states have internal predecessors, (38363), 4802 states have call successors, (4802), 16 states have call predecessors, (4802), 20 states have return successors, (5415), 4801 states have call predecessors, (5415), 4801 states have call successors, (5415) [2024-11-11 20:35:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28834 states to 28834 states and 48580 transitions. [2024-11-11 20:35:39,658 INFO L78 Accepts]: Start accepts. Automaton has 28834 states and 48580 transitions. Word has length 131 [2024-11-11 20:35:39,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:39,658 INFO L471 AbstractCegarLoop]: Abstraction has 28834 states and 48580 transitions. [2024-11-11 20:35:39,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:39,659 INFO L276 IsEmpty]: Start isEmpty. Operand 28834 states and 48580 transitions. [2024-11-11 20:35:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 20:35:39,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:39,691 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:39,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 20:35:39,692 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:39,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:39,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1114295804, now seen corresponding path program 1 times [2024-11-11 20:35:39,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:39,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914379350] [2024-11-11 20:35:39,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:39,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:35:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:35:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:35:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:35:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:35:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:35:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:39,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:39,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914379350] [2024-11-11 20:35:39,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914379350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:39,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:39,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:39,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145829131] [2024-11-11 20:35:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:39,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:39,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:39,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:39,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:39,811 INFO L87 Difference]: Start difference. First operand 28834 states and 48580 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:42,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:42,393 INFO L93 Difference]: Finished difference Result 78718 states and 134761 transitions. [2024-11-11 20:35:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:42,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-11 20:35:42,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:42,652 INFO L225 Difference]: With dead ends: 78718 [2024-11-11 20:35:42,653 INFO L226 Difference]: Without dead ends: 52889 [2024-11-11 20:35:42,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:42,747 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 1077 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:42,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 824 Invalid, 1649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:42,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52889 states. [2024-11-11 20:35:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52889 to 52713. [2024-11-11 20:35:44,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52713 states, 44175 states have (on average 1.5921222410865874) internal successors, (70332), 44180 states have internal predecessors, (70332), 8517 states have call successors, (8517), 16 states have call predecessors, (8517), 20 states have return successors, (9662), 8516 states have call predecessors, (9662), 8516 states have call successors, (9662) [2024-11-11 20:35:45,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52713 states to 52713 states and 88511 transitions. [2024-11-11 20:35:45,409 INFO L78 Accepts]: Start accepts. Automaton has 52713 states and 88511 transitions. Word has length 132 [2024-11-11 20:35:45,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:45,411 INFO L471 AbstractCegarLoop]: Abstraction has 52713 states and 88511 transitions. [2024-11-11 20:35:45,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 52713 states and 88511 transitions. [2024-11-11 20:35:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-11 20:35:45,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:45,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:45,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 20:35:45,449 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:45,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1436802920, now seen corresponding path program 1 times [2024-11-11 20:35:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:45,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964281776] [2024-11-11 20:35:45,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:45,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:35:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:35:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:35:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:35:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 20:35:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:35:45,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964281776] [2024-11-11 20:35:45,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964281776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:45,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:45,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:35:45,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935186361] [2024-11-11 20:35:45,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:45,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:35:45,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:45,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:35:45,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:35:45,556 INFO L87 Difference]: Start difference. First operand 52713 states and 88511 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:48,479 INFO L93 Difference]: Finished difference Result 98489 states and 168948 transitions. [2024-11-11 20:35:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2024-11-11 20:35:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:49,154 INFO L225 Difference]: With dead ends: 98489 [2024-11-11 20:35:49,155 INFO L226 Difference]: Without dead ends: 98348 [2024-11-11 20:35:49,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:49,203 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 1029 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:49,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 847 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:35:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98348 states. [2024-11-11 20:35:52,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98348 to 98172. [2024-11-11 20:35:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98172 states, 82835 states have (on average 1.585102915434297) internal successors, (131302), 82840 states have internal predecessors, (131302), 15316 states have call successors, (15316), 16 states have call predecessors, (15316), 20 states have return successors, (17507), 15315 states have call predecessors, (17507), 15315 states have call successors, (17507) [2024-11-11 20:35:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98172 states to 98172 states and 164125 transitions. [2024-11-11 20:35:52,621 INFO L78 Accepts]: Start accepts. Automaton has 98172 states and 164125 transitions. Word has length 133 [2024-11-11 20:35:52,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:52,622 INFO L471 AbstractCegarLoop]: Abstraction has 98172 states and 164125 transitions. [2024-11-11 20:35:52,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-11 20:35:52,622 INFO L276 IsEmpty]: Start isEmpty. Operand 98172 states and 164125 transitions. [2024-11-11 20:35:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 20:35:52,670 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:52,670 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:52,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 20:35:52,671 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:52,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:52,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1777075171, now seen corresponding path program 1 times [2024-11-11 20:35:52,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:52,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549206209] [2024-11-11 20:35:52,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:52,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:35:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:35:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:35:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:35:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:35:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:35:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:35:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:35:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:35:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 20:35:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-11 20:35:52,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:52,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549206209] [2024-11-11 20:35:52,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549206209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:52,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388720100] [2024-11-11 20:35:52,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:52,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:52,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:52,907 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) [2024-11-11 20:35:52,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 20:35:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:53,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-11 20:35:53,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:53,369 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:35:53,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:35:53,599 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-11 20:35:53,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388720100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:35:53,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:35:53,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 23 [2024-11-11 20:35:53,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658124982] [2024-11-11 20:35:53,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:35:53,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-11 20:35:53,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:53,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-11 20:35:53,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:35:53,602 INFO L87 Difference]: Start difference. First operand 98172 states and 164125 transitions. Second operand has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 18 states have internal predecessors, (222), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2024-11-11 20:36:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:01,929 INFO L93 Difference]: Finished difference Result 196829 states and 339868 transitions. [2024-11-11 20:36:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-11 20:36:01,930 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 18 states have internal predecessors, (222), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) Word has length 134 [2024-11-11 20:36:01,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:02,885 INFO L225 Difference]: With dead ends: 196829 [2024-11-11 20:36:02,885 INFO L226 Difference]: Without dead ends: 196694 [2024-11-11 20:36:02,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=621, Invalid=2571, Unknown=0, NotChecked=0, Total=3192 [2024-11-11 20:36:02,962 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 2881 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 7382 mSolverCounterSat, 761 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 8143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 761 IncrementalHoareTripleChecker+Valid, 7382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:02,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 2781 Invalid, 8143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [761 Valid, 7382 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-11 20:36:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196694 states. [2024-11-11 20:36:09,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196694 to 196345. [2024-11-11 20:36:10,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196345 states, 165673 states have (on average 1.5851104283739657) internal successors, (262610), 165680 states have internal predecessors, (262610), 30630 states have call successors, (30630), 34 states have call predecessors, (30630), 41 states have return successors, (37192), 30630 states have call predecessors, (37192), 30628 states have call successors, (37192) [2024-11-11 20:36:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196345 states to 196345 states and 330432 transitions. [2024-11-11 20:36:10,693 INFO L78 Accepts]: Start accepts. Automaton has 196345 states and 330432 transitions. Word has length 134 [2024-11-11 20:36:10,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:10,694 INFO L471 AbstractCegarLoop]: Abstraction has 196345 states and 330432 transitions. [2024-11-11 20:36:10,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 18 states have internal predecessors, (222), 4 states have call successors, (42), 10 states have call predecessors, (42), 8 states have return successors, (35), 5 states have call predecessors, (35), 4 states have call successors, (35) [2024-11-11 20:36:10,694 INFO L276 IsEmpty]: Start isEmpty. Operand 196345 states and 330432 transitions. [2024-11-11 20:36:10,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-11 20:36:10,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:10,803 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:10,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 20:36:11,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:11,004 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:11,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 602556902, now seen corresponding path program 1 times [2024-11-11 20:36:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:11,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613119092] [2024-11-11 20:36:11,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:11,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:11,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:11,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:11,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:11,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:11,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:11,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:36:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:36:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:36:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:36:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:36:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:36:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 20:36:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:36:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,029 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-11 20:36:12,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:12,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613119092] [2024-11-11 20:36:12,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613119092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:12,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:12,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-11 20:36:12,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950522285] [2024-11-11 20:36:12,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:12,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:36:12,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:12,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:36:12,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:36:12,032 INFO L87 Difference]: Start difference. First operand 196345 states and 330432 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)