./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product05.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_product05.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 74a12e124f66b10df64ef68155d31c3be83012aab827a45870f5335a6569b75a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:34:44,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:34:44,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:34:44,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:34:44,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:34:44,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:34:44,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:34:44,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:34:44,178 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:34:44,179 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:34:44,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:34:44,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:34:44,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:34:44,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:34:44,180 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:34:44,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:34:44,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:34:44,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:34:44,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:34:44,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:34:44,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:34:44,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:34:44,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:34:44,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:34:44,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:34:44,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:34:44,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:34:44,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:34:44,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:34:44,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:34:44,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:34:44,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:34:44,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:34:44,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:34:44,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:34:44,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:34:44,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:34:44,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:34:44,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:34:44,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:34:44,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:34:44,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:34:44,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74a12e124f66b10df64ef68155d31c3be83012aab827a45870f5335a6569b75a [2024-11-11 20:34:44,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:34:44,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:34:44,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:34:44,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:34:44,499 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:34:44,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product05.cil.c [2024-11-11 20:34:45,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:34:46,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:34:46,213 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product05.cil.c [2024-11-11 20:34:46,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d268672e/630ad00b243146aebf3ee99812804365/FLAG18429fc4d [2024-11-11 20:34:46,243 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d268672e/630ad00b243146aebf3ee99812804365 [2024-11-11 20:34:46,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:34:46,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:34:46,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:34:46,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:34:46,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:34:46,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:46,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d118e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46, skipping insertion in model container [2024-11-11 20:34:46,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:46,325 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:34:46,581 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_product05.cil.c[4289,4302] [2024-11-11 20:34:46,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:34:46,835 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:34:46,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-11 20:34:46,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [202] [2024-11-11 20:34:46,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [211] [2024-11-11 20:34:46,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [403] [2024-11-11 20:34:46,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [815] [2024-11-11 20:34:46,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1181] [2024-11-11 20:34:46,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1201] [2024-11-11 20:34:46,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2279] [2024-11-11 20:34:46,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2435] [2024-11-11 20:34:46,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2452] [2024-11-11 20:34:46,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2515] [2024-11-11 20:34:46,864 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_product05.cil.c[4289,4302] [2024-11-11 20:34:46,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:34:46,980 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:34:46,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46 WrapperNode [2024-11-11 20:34:46,981 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:34:46,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:34:46,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:34:46,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:34:46,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,052 INFO L138 Inliner]: procedures = 107, calls = 113, calls flagged for inlining = 37, calls inlined = 30, statements flattened = 587 [2024-11-11 20:34:47,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:34:47,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:34:47,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:34:47,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:34:47,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,110 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2024-11-11 20:34:47,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,120 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,136 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:34:47,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:34:47,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:34:47,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:34:47,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (1/1) ... [2024-11-11 20:34:47,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:34:47,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:34:47,178 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 20:34:47,197 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 20:34:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-11 20:34:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-11 20:34:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-11 20:34:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-11 20:34:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-11 20:34:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-11 20:34:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-11 20:34:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-11 20:34:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:34:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-11 20:34:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-11 20:34:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-11 20:34:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-11 20:34:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-11 20:34:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-11 20:34:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:34:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:34:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:34:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:34:47,403 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:34:47,405 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:34:47,917 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-11 20:34:47,917 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:34:47,936 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:34:47,937 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:34:47,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:34:47 BoogieIcfgContainer [2024-11-11 20:34:47,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:34:47,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:34:47,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:34:47,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:34:47,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:34:46" (1/3) ... [2024-11-11 20:34:47,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537db4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:34:47, skipping insertion in model container [2024-11-11 20:34:47,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:34:46" (2/3) ... [2024-11-11 20:34:47,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537db4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:34:47, skipping insertion in model container [2024-11-11 20:34:47,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:34:47" (3/3) ... [2024-11-11 20:34:47,949 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product05.cil.c [2024-11-11 20:34:47,966 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:34:47,966 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:34:48,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:34:48,043 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;@45a34bf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:34:48,044 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:34:48,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 108 states have (on average 1.4814814814814814) internal successors, (160), 110 states have internal predecessors, (160), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-11 20:34:48,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-11 20:34:48,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:48,065 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:48,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:48,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:48,072 INFO L85 PathProgramCache]: Analyzing trace with hash -222738457, now seen corresponding path program 1 times [2024-11-11 20:34:48,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:48,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120317032] [2024-11-11 20:34:48,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:48,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:34:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:34:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-11 20:34:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:34:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:34:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:34:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:34:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:34:48,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:48,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120317032] [2024-11-11 20:34:48,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120317032] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:34:48,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569615003] [2024-11-11 20:34:48,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:48,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:34:48,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:34:48,723 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 20:34:48,724 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 20:34:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:48,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:34:48,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:34:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-11 20:34:49,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:34:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569615003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:49,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:34:49,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-11-11 20:34:49,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678083281] [2024-11-11 20:34:49,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:49,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:34:49,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:34:49,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:34:49,042 INFO L87 Difference]: Start difference. First operand has 131 states, 108 states have (on average 1.4814814814814814) internal successors, (160), 110 states have internal predecessors, (160), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:49,070 INFO L93 Difference]: Finished difference Result 212 states and 295 transitions. [2024-11-11 20:34:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:34:49,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2024-11-11 20:34:49,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:49,082 INFO L225 Difference]: With dead ends: 212 [2024-11-11 20:34:49,082 INFO L226 Difference]: Without dead ends: 124 [2024-11-11 20:34:49,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:34:49,088 INFO L435 NwaCegarLoop]: 184 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, 184 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 20:34:49,089 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:34:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-11 20:34:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-11 20:34:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.4607843137254901) internal successors, (149), 103 states have internal predecessors, (149), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-11 20:34:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 176 transitions. [2024-11-11 20:34:49,138 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 176 transitions. Word has length 75 [2024-11-11 20:34:49,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:49,140 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 176 transitions. [2024-11-11 20:34:49,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 176 transitions. [2024-11-11 20:34:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-11 20:34:49,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:49,144 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:49,165 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 20:34:49,344 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 20:34:49,345 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:49,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash 61296615, now seen corresponding path program 1 times [2024-11-11 20:34:49,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:49,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326652703] [2024-11-11 20:34:49,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:34:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:34:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 20:34:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 20:34:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:34:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:34:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:34:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:34:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326652703] [2024-11-11 20:34:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326652703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:34:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784010233] [2024-11-11 20:34:49,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:49,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:34:49,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:34:49,650 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 20:34:49,651 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 20:34:49,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:49,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:34:49,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:34:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-11 20:34:49,913 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:34:49,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784010233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:49,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:34:49,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-11 20:34:49,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889905371] [2024-11-11 20:34:49,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:49,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:34:49,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:49,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:34:49,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:34:49,917 INFO L87 Difference]: Start difference. First operand 124 states and 176 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:49,949 INFO L93 Difference]: Finished difference Result 202 states and 276 transitions. [2024-11-11 20:34:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:34:49,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2024-11-11 20:34:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:49,952 INFO L225 Difference]: With dead ends: 202 [2024-11-11 20:34:49,952 INFO L226 Difference]: Without dead ends: 127 [2024-11-11 20:34:49,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 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 20:34:49,954 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 346 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 20:34:49,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 346 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:34:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-11 20:34:49,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2024-11-11 20:34:49,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 104 states have (on average 1.4519230769230769) internal successors, (151), 105 states have internal predecessors, (151), 14 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-11 20:34:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 178 transitions. [2024-11-11 20:34:49,969 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 178 transitions. Word has length 76 [2024-11-11 20:34:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:49,970 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 178 transitions. [2024-11-11 20:34:49,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 178 transitions. [2024-11-11 20:34:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-11 20:34:49,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:49,975 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:49,995 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 20:34:50,177 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 20:34:50,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:50,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:50,178 INFO L85 PathProgramCache]: Analyzing trace with hash 274053016, now seen corresponding path program 1 times [2024-11-11 20:34:50,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:50,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383376942] [2024-11-11 20:34:50,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:50,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:34:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-11 20:34:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:34:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:34:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:34:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:34:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:34:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 20:34:50,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:50,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383376942] [2024-11-11 20:34:50,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383376942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:34:50,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703826460] [2024-11-11 20:34:50,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:50,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:34:50,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:34:50,426 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 20:34:50,428 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 20:34:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:50,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:34:50,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:34:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:34:50,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:34:50,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703826460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:50,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:34:50,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-11 20:34:50,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713236728] [2024-11-11 20:34:50,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:50,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:34:50,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:50,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:34:50,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:34:50,772 INFO L87 Difference]: Start difference. First operand 126 states and 178 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:34:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:50,832 INFO L93 Difference]: Finished difference Result 245 states and 349 transitions. [2024-11-11 20:34:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:34:50,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2024-11-11 20:34:50,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:50,836 INFO L225 Difference]: With dead ends: 245 [2024-11-11 20:34:50,836 INFO L226 Difference]: Without dead ends: 128 [2024-11-11 20:34:50,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:34:50,838 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 2 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 661 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 20:34:50,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 661 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:34:50,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-11 20:34:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-11 20:34:50,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 107 states have internal predecessors, (152), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-11 20:34:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 181 transitions. [2024-11-11 20:34:50,854 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 181 transitions. Word has length 81 [2024-11-11 20:34:50,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:50,854 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 181 transitions. [2024-11-11 20:34:50,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:34:50,855 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 181 transitions. [2024-11-11 20:34:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-11 20:34:50,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:50,857 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:50,875 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 20:34:51,057 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 20:34:51,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:51,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1709648729, now seen corresponding path program 1 times [2024-11-11 20:34:51,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714828739] [2024-11-11 20:34:51,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:51,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:34:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 20:34:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:34:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:34:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:34:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:34:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 20:34:51,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:51,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714828739] [2024-11-11 20:34:51,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714828739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:51,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:51,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 20:34:51,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091106730] [2024-11-11 20:34:51,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:51,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:34:51,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:51,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:34:51,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:34:51,267 INFO L87 Difference]: Start difference. First operand 128 states and 181 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:34:52,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:52,201 INFO L93 Difference]: Finished difference Result 342 states and 488 transitions. [2024-11-11 20:34:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:34:52,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2024-11-11 20:34:52,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:52,204 INFO L225 Difference]: With dead ends: 342 [2024-11-11 20:34:52,204 INFO L226 Difference]: Without dead ends: 233 [2024-11-11 20:34:52,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:34:52,206 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 238 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:52,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 522 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:34:52,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-11 20:34:52,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 128. [2024-11-11 20:34:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 105 states have (on average 1.4476190476190476) internal successors, (152), 107 states have internal predecessors, (152), 14 states have call successors, (14), 7 states have call predecessors, (14), 8 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-11 20:34:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 180 transitions. [2024-11-11 20:34:52,244 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 180 transitions. Word has length 82 [2024-11-11 20:34:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:52,245 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 180 transitions. [2024-11-11 20:34:52,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:34:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 180 transitions. [2024-11-11 20:34:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-11 20:34:52,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:52,248 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:52,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 20:34:52,251 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:52,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash -24130620, now seen corresponding path program 2 times [2024-11-11 20:34:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:52,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996566222] [2024-11-11 20:34:52,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:52,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:34:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:34:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:34:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:34:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:34:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:34:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-11 20:34:52,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:52,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996566222] [2024-11-11 20:34:52,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996566222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:52,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:52,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 20:34:52,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472354265] [2024-11-11 20:34:52,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:52,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:34:52,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:52,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:34:52,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:34:52,425 INFO L87 Difference]: Start difference. First operand 128 states and 180 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:34:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:53,269 INFO L93 Difference]: Finished difference Result 344 states and 491 transitions. [2024-11-11 20:34:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:34:53,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-11 20:34:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:53,273 INFO L225 Difference]: With dead ends: 344 [2024-11-11 20:34:53,275 INFO L226 Difference]: Without dead ends: 235 [2024-11-11 20:34:53,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:34:53,277 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 235 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:53,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 522 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 20:34:53,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-11 20:34:53,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 130. [2024-11-11 20:34:53,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 106 states have (on average 1.4433962264150944) internal successors, (153), 109 states have internal predecessors, (153), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 183 transitions. [2024-11-11 20:34:53,316 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 183 transitions. Word has length 83 [2024-11-11 20:34:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:53,316 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 183 transitions. [2024-11-11 20:34:53,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:34:53,317 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 183 transitions. [2024-11-11 20:34:53,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-11 20:34:53,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:53,318 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:53,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 20:34:53,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:53,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:53,319 INFO L85 PathProgramCache]: Analyzing trace with hash 524770110, now seen corresponding path program 1 times [2024-11-11 20:34:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872052038] [2024-11-11 20:34:53,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:53,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:34:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 20:34:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:34:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:34:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:34:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:34:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:53,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:53,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872052038] [2024-11-11 20:34:53,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872052038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:34:53,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215893907] [2024-11-11 20:34:53,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:53,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:34:53,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:34:53,466 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 20:34:53,469 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 20:34:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:53,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:34:53,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:34:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:53,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:34:53,812 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:53,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215893907] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:34:53,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:34:53,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-11-11 20:34:53,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412109438] [2024-11-11 20:34:53,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:34:53,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:34:53,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:34:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:53,816 INFO L87 Difference]: Start difference. First operand 130 states and 183 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-11 20:34:54,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:54,729 INFO L93 Difference]: Finished difference Result 424 states and 634 transitions. [2024-11-11 20:34:54,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:34:54,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 84 [2024-11-11 20:34:54,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:54,732 INFO L225 Difference]: With dead ends: 424 [2024-11-11 20:34:54,732 INFO L226 Difference]: Without dead ends: 349 [2024-11-11 20:34:54,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:34:54,736 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 406 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:54,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 595 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 20:34:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-11-11 20:34:54,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 220. [2024-11-11 20:34:54,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 196 states have (on average 1.6224489795918366) internal successors, (318), 199 states have internal predecessors, (318), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 348 transitions. [2024-11-11 20:34:54,776 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 348 transitions. Word has length 84 [2024-11-11 20:34:54,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:54,777 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 348 transitions. [2024-11-11 20:34:54,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 7 states have internal predecessors, (79), 2 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-11 20:34:54,778 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 348 transitions. [2024-11-11 20:34:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 20:34:54,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:54,779 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:54,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-11 20:34:54,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:34:54,980 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:54,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1301394876, now seen corresponding path program 1 times [2024-11-11 20:34:54,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:54,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786485878] [2024-11-11 20:34:54,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:34:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:34:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:34:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:34:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:34:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:34:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:55,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:55,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786485878] [2024-11-11 20:34:55,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786485878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:55,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:55,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:55,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723665269] [2024-11-11 20:34:55,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:55,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:55,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:55,087 INFO L87 Difference]: Start difference. First operand 220 states and 348 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:55,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:55,668 INFO L93 Difference]: Finished difference Result 614 states and 985 transitions. [2024-11-11 20:34:55,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:34:55,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2024-11-11 20:34:55,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:55,672 INFO L225 Difference]: With dead ends: 614 [2024-11-11 20:34:55,672 INFO L226 Difference]: Without dead ends: 422 [2024-11-11 20:34:55,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:55,673 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 291 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:55,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 372 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:34:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-11 20:34:55,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 309. [2024-11-11 20:34:55,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 285 states have (on average 1.6701754385964913) internal successors, (476), 288 states have internal predecessors, (476), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 506 transitions. [2024-11-11 20:34:55,691 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 506 transitions. Word has length 91 [2024-11-11 20:34:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:55,692 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 506 transitions. [2024-11-11 20:34:55,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 506 transitions. [2024-11-11 20:34:55,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-11 20:34:55,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:55,693 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:55,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:34:55,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:55,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:55,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1463575206, now seen corresponding path program 1 times [2024-11-11 20:34:55,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:55,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762569394] [2024-11-11 20:34:55,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:55,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 20:34:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:34:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:34:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:34:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:34:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:34:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:55,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:55,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762569394] [2024-11-11 20:34:55,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762569394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:55,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:55,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:55,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691002549] [2024-11-11 20:34:55,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:55,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:55,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:55,770 INFO L87 Difference]: Start difference. First operand 309 states and 506 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:56,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:56,369 INFO L93 Difference]: Finished difference Result 842 states and 1391 transitions. [2024-11-11 20:34:56,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:34:56,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2024-11-11 20:34:56,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:56,374 INFO L225 Difference]: With dead ends: 842 [2024-11-11 20:34:56,374 INFO L226 Difference]: Without dead ends: 569 [2024-11-11 20:34:56,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:56,375 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 291 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:56,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 366 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:34:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-11 20:34:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 456. [2024-11-11 20:34:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 432 states have (on average 1.6967592592592593) internal successors, (733), 435 states have internal predecessors, (733), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:56,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 763 transitions. [2024-11-11 20:34:56,402 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 763 transitions. Word has length 92 [2024-11-11 20:34:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:56,403 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 763 transitions. [2024-11-11 20:34:56,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 763 transitions. [2024-11-11 20:34:56,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 20:34:56,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:56,404 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:56,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:34:56,405 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:56,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:56,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1317896282, now seen corresponding path program 1 times [2024-11-11 20:34:56,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:56,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940453501] [2024-11-11 20:34:56,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:56,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:34:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:34:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:34:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:34:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:34:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:34:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:56,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:56,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940453501] [2024-11-11 20:34:56,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940453501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:56,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:56,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:56,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877961957] [2024-11-11 20:34:56,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:56,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:56,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:56,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:56,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:56,497 INFO L87 Difference]: Start difference. First operand 456 states and 763 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:57,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:57,082 INFO L93 Difference]: Finished difference Result 1204 states and 2026 transitions. [2024-11-11 20:34:57,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:34:57,083 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2024-11-11 20:34:57,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:57,089 INFO L225 Difference]: With dead ends: 1204 [2024-11-11 20:34:57,089 INFO L226 Difference]: Without dead ends: 803 [2024-11-11 20:34:57,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:57,092 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 287 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:57,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 370 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:34:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-11 20:34:57,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 690. [2024-11-11 20:34:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 666 states have (on average 1.7042042042042043) internal successors, (1135), 669 states have internal predecessors, (1135), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:57,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1165 transitions. [2024-11-11 20:34:57,120 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1165 transitions. Word has length 93 [2024-11-11 20:34:57,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:57,120 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 1165 transitions. [2024-11-11 20:34:57,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:57,121 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1165 transitions. [2024-11-11 20:34:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 20:34:57,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:57,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:57,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:34:57,123 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:57,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1068484616, now seen corresponding path program 1 times [2024-11-11 20:34:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:57,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818418687] [2024-11-11 20:34:57,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:34:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:34:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:34:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:34:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:34:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:34:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,223 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:57,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:57,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818418687] [2024-11-11 20:34:57,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818418687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:57,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:57,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:57,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706509467] [2024-11-11 20:34:57,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:57,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:57,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:57,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:57,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:57,226 INFO L87 Difference]: Start difference. First operand 690 states and 1165 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:57,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:57,813 INFO L93 Difference]: Finished difference Result 1776 states and 3016 transitions. [2024-11-11 20:34:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:34:57,814 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2024-11-11 20:34:57,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:57,819 INFO L225 Difference]: With dead ends: 1776 [2024-11-11 20:34:57,819 INFO L226 Difference]: Without dead ends: 1179 [2024-11-11 20:34:57,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:57,821 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 286 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:57,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 369 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:34:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2024-11-11 20:34:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 1066. [2024-11-11 20:34:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 1042 states have (on average 1.7005758157389634) internal successors, (1772), 1045 states have internal predecessors, (1772), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1802 transitions. [2024-11-11 20:34:57,860 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1802 transitions. Word has length 94 [2024-11-11 20:34:57,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:57,860 INFO L471 AbstractCegarLoop]: Abstraction has 1066 states and 1802 transitions. [2024-11-11 20:34:57,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1802 transitions. [2024-11-11 20:34:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-11 20:34:57,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:57,863 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:57,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 20:34:57,864 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:57,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:57,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1648648952, now seen corresponding path program 1 times [2024-11-11 20:34:57,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190238811] [2024-11-11 20:34:57,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:34:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:34:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:34:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:34:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:34:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:34:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:57,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:57,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190238811] [2024-11-11 20:34:57,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190238811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:57,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:57,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:57,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388186245] [2024-11-11 20:34:57,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:57,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:57,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:57,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:57,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:57,950 INFO L87 Difference]: Start difference. First operand 1066 states and 1802 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:58,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:58,559 INFO L93 Difference]: Finished difference Result 2711 states and 4617 transitions. [2024-11-11 20:34:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:34:58,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2024-11-11 20:34:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:58,566 INFO L225 Difference]: With dead ends: 2711 [2024-11-11 20:34:58,566 INFO L226 Difference]: Without dead ends: 1803 [2024-11-11 20:34:58,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:58,568 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 283 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:58,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 370 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:34:58,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-11 20:34:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1690. [2024-11-11 20:34:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1666 states have (on average 1.6920768307322929) internal successors, (2819), 1669 states have internal predecessors, (2819), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:58,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2849 transitions. [2024-11-11 20:34:58,614 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2849 transitions. Word has length 95 [2024-11-11 20:34:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:58,615 INFO L471 AbstractCegarLoop]: Abstraction has 1690 states and 2849 transitions. [2024-11-11 20:34:58,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2849 transitions. [2024-11-11 20:34:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-11 20:34:58,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:58,619 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:58,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 20:34:58,620 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:58,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash -48945814, now seen corresponding path program 1 times [2024-11-11 20:34:58,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:58,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564908222] [2024-11-11 20:34:58,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:58,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:34:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:34:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:34:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:34:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:34:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:34:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:58,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:58,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564908222] [2024-11-11 20:34:58,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564908222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:58,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:58,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:58,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237630733] [2024-11-11 20:34:58,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:58,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:58,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:58,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:58,713 INFO L87 Difference]: Start difference. First operand 1690 states and 2849 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:59,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:34:59,351 INFO L93 Difference]: Finished difference Result 4038 states and 6896 transitions. [2024-11-11 20:34:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:34:59,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 96 [2024-11-11 20:34:59,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:34:59,361 INFO L225 Difference]: With dead ends: 4038 [2024-11-11 20:34:59,362 INFO L226 Difference]: Without dead ends: 2686 [2024-11-11 20:34:59,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:34:59,364 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 281 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:34:59,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 360 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:34:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2024-11-11 20:34:59,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2573. [2024-11-11 20:34:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2549 states have (on average 1.6881129854845038) internal successors, (4303), 2552 states have internal predecessors, (4303), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:34:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4333 transitions. [2024-11-11 20:34:59,435 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4333 transitions. Word has length 96 [2024-11-11 20:34:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:34:59,436 INFO L471 AbstractCegarLoop]: Abstraction has 2573 states and 4333 transitions. [2024-11-11 20:34:59,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:34:59,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4333 transitions. [2024-11-11 20:34:59,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-11 20:34:59,441 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:34:59,442 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:34:59,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 20:34:59,442 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:34:59,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:34:59,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1971076502, now seen corresponding path program 1 times [2024-11-11 20:34:59,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:34:59,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958579710] [2024-11-11 20:34:59,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:34:59,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:34:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:34:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:34:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:34:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:34:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:34:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:34:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:34:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:34:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:34:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:34:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:34:59,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:34:59,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958579710] [2024-11-11 20:34:59,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958579710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:34:59,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:34:59,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:34:59,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285568160] [2024-11-11 20:34:59,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:34:59,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:34:59,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:34:59,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:34:59,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:34:59,529 INFO L87 Difference]: Start difference. First operand 2573 states and 4333 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:00,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:00,206 INFO L93 Difference]: Finished difference Result 6547 states and 11148 transitions. [2024-11-11 20:35:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:35:00,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2024-11-11 20:35:00,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:00,224 INFO L225 Difference]: With dead ends: 6547 [2024-11-11 20:35:00,224 INFO L226 Difference]: Without dead ends: 4455 [2024-11-11 20:35:00,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:00,229 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 279 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:00,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 368 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 20:35:00,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4455 states. [2024-11-11 20:35:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4455 to 4342. [2024-11-11 20:35:00,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 4318 states have (on average 1.6764705882352942) internal successors, (7239), 4321 states have internal predecessors, (7239), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:00,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 7269 transitions. [2024-11-11 20:35:00,377 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 7269 transitions. Word has length 97 [2024-11-11 20:35:00,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:00,377 INFO L471 AbstractCegarLoop]: Abstraction has 4342 states and 7269 transitions. [2024-11-11 20:35:00,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:00,377 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 7269 transitions. [2024-11-11 20:35:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-11 20:35:00,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:00,386 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:00,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 20:35:00,386 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:00,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash -18541512, now seen corresponding path program 1 times [2024-11-11 20:35:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179568944] [2024-11-11 20:35:00,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:35:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:35:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:35:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:35:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:35:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:35:00,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179568944] [2024-11-11 20:35:00,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179568944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:00,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:00,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:35:00,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217449047] [2024-11-11 20:35:00,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:00,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:35:00,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:00,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:35:00,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:35:00,471 INFO L87 Difference]: Start difference. First operand 4342 states and 7269 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:01,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:01,136 INFO L93 Difference]: Finished difference Result 11343 states and 19176 transitions. [2024-11-11 20:35:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:35:01,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 98 [2024-11-11 20:35:01,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:01,163 INFO L225 Difference]: With dead ends: 11343 [2024-11-11 20:35:01,163 INFO L226 Difference]: Without dead ends: 7706 [2024-11-11 20:35:01,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:01,168 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 277 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:01,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 370 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:35:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7706 states. [2024-11-11 20:35:01,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7706 to 7593. [2024-11-11 20:35:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 7569 states have (on average 1.6628352490421456) internal successors, (12586), 7572 states have internal predecessors, (12586), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 12616 transitions. [2024-11-11 20:35:01,347 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 12616 transitions. Word has length 98 [2024-11-11 20:35:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:01,348 INFO L471 AbstractCegarLoop]: Abstraction has 7593 states and 12616 transitions. [2024-11-11 20:35:01,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 12616 transitions. [2024-11-11 20:35:01,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-11 20:35:01,361 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:01,361 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:01,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:35:01,361 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:01,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1347268801, now seen corresponding path program 2 times [2024-11-11 20:35:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348969010] [2024-11-11 20:35:01,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:01,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:35:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:35:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:35:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:35:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:01,457 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:35:01,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:01,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348969010] [2024-11-11 20:35:01,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348969010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:01,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:01,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:35:01,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171044717] [2024-11-11 20:35:01,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:01,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:35:01,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:01,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:35:01,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:35:01,460 INFO L87 Difference]: Start difference. First operand 7593 states and 12616 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:02,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:02,110 INFO L93 Difference]: Finished difference Result 14154 states and 23639 transitions. [2024-11-11 20:35:02,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:35:02,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-11-11 20:35:02,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:02,152 INFO L225 Difference]: With dead ends: 14154 [2024-11-11 20:35:02,152 INFO L226 Difference]: Without dead ends: 7706 [2024-11-11 20:35:02,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:02,166 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 291 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:02,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 602 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:35:02,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7706 states. [2024-11-11 20:35:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7706 to 7593. [2024-11-11 20:35:02,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 7569 states have (on average 1.6447351037125115) internal successors, (12449), 7572 states have internal predecessors, (12449), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 12479 transitions. [2024-11-11 20:35:02,384 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 12479 transitions. Word has length 99 [2024-11-11 20:35:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:02,385 INFO L471 AbstractCegarLoop]: Abstraction has 7593 states and 12479 transitions. [2024-11-11 20:35:02,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 12479 transitions. [2024-11-11 20:35:02,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-11 20:35:02,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:02,399 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:02,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 20:35:02,399 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:02,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:02,400 INFO L85 PathProgramCache]: Analyzing trace with hash -62251596, now seen corresponding path program 1 times [2024-11-11 20:35:02,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:02,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564987674] [2024-11-11 20:35:02,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:02,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:35:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:35:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:35:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:35:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:35:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:35:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:35:02,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:02,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564987674] [2024-11-11 20:35:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564987674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:35:02,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417986598] [2024-11-11 20:35:02,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:02,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:35:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:02,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:35:02,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:35:02,487 INFO L87 Difference]: Start difference. First operand 7593 states and 12479 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:03,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:03,237 INFO L93 Difference]: Finished difference Result 20417 states and 33780 transitions. [2024-11-11 20:35:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:35:03,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 99 [2024-11-11 20:35:03,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:03,271 INFO L225 Difference]: With dead ends: 20417 [2024-11-11 20:35:03,271 INFO L226 Difference]: Without dead ends: 13817 [2024-11-11 20:35:03,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:03,279 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 275 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:03,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 370 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 20:35:03,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13817 states. [2024-11-11 20:35:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13817 to 13704. [2024-11-11 20:35:03,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13704 states, 13680 states have (on average 1.6266812865497076) internal successors, (22253), 13683 states have internal predecessors, (22253), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13704 states to 13704 states and 22283 transitions. [2024-11-11 20:35:03,706 INFO L78 Accepts]: Start accepts. Automaton has 13704 states and 22283 transitions. Word has length 99 [2024-11-11 20:35:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:03,706 INFO L471 AbstractCegarLoop]: Abstraction has 13704 states and 22283 transitions. [2024-11-11 20:35:03,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:03,707 INFO L276 IsEmpty]: Start isEmpty. Operand 13704 states and 22283 transitions. [2024-11-11 20:35:03,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-11 20:35:03,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:03,724 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:03,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 20:35:03,724 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:03,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash -814529510, now seen corresponding path program 1 times [2024-11-11 20:35:03,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:03,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708972006] [2024-11-11 20:35:03,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:35:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:35:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:35:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:35:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:35:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:35:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:35:03,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:03,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708972006] [2024-11-11 20:35:03,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708972006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:03,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:03,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:35:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786007788] [2024-11-11 20:35:03,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:03,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:35:03,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:35:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:35:03,812 INFO L87 Difference]: Start difference. First operand 13704 states and 22283 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:04,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:04,624 INFO L93 Difference]: Finished difference Result 37829 states and 61752 transitions. [2024-11-11 20:35:04,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:35:04,624 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2024-11-11 20:35:04,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:04,685 INFO L225 Difference]: With dead ends: 37829 [2024-11-11 20:35:04,686 INFO L226 Difference]: Without dead ends: 25478 [2024-11-11 20:35:04,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:04,701 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 274 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:04,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 367 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:35:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25478 states. [2024-11-11 20:35:05,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25478 to 25365. [2024-11-11 20:35:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25365 states, 25341 states have (on average 1.605066887652421) internal successors, (40674), 25344 states have internal predecessors, (40674), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25365 states to 25365 states and 40704 transitions. [2024-11-11 20:35:05,354 INFO L78 Accepts]: Start accepts. Automaton has 25365 states and 40704 transitions. Word has length 100 [2024-11-11 20:35:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:05,354 INFO L471 AbstractCegarLoop]: Abstraction has 25365 states and 40704 transitions. [2024-11-11 20:35:05,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25365 states and 40704 transitions. [2024-11-11 20:35:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-11 20:35:05,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:05,385 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:05,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 20:35:05,385 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:05,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:05,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1099912658, now seen corresponding path program 1 times [2024-11-11 20:35:05,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:05,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918047043] [2024-11-11 20:35:05,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:05,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:35:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:35:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:35:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:35:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:35:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:35:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:35:05,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:05,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918047043] [2024-11-11 20:35:05,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918047043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:05,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:05,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 20:35:05,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488924107] [2024-11-11 20:35:05,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:05,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:35:05,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:05,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:35:05,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 20:35:05,501 INFO L87 Difference]: Start difference. First operand 25365 states and 40704 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:06,364 INFO L93 Difference]: Finished difference Result 47982 states and 76863 transitions. [2024-11-11 20:35:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:35:06,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 101 [2024-11-11 20:35:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:06,496 INFO L225 Difference]: With dead ends: 47982 [2024-11-11 20:35:06,496 INFO L226 Difference]: Without dead ends: 47907 [2024-11-11 20:35:06,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:35:06,519 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 270 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:06,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 393 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 20:35:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47907 states. [2024-11-11 20:35:07,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47907 to 47794. [2024-11-11 20:35:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47794 states, 47770 states have (on average 1.5801130416579443) internal successors, (75482), 47773 states have internal predecessors, (75482), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47794 states to 47794 states and 75512 transitions. [2024-11-11 20:35:07,830 INFO L78 Accepts]: Start accepts. Automaton has 47794 states and 75512 transitions. Word has length 101 [2024-11-11 20:35:07,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:07,830 INFO L471 AbstractCegarLoop]: Abstraction has 47794 states and 75512 transitions. [2024-11-11 20:35:07,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:07,830 INFO L276 IsEmpty]: Start isEmpty. Operand 47794 states and 75512 transitions. [2024-11-11 20:35:07,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 20:35:07,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:07,858 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:07,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 20:35:07,858 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:07,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:07,859 INFO L85 PathProgramCache]: Analyzing trace with hash 220444072, now seen corresponding path program 1 times [2024-11-11 20:35:07,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:07,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831868980] [2024-11-11 20:35:07,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:07,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:35:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,241 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:35:08,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:08,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831868980] [2024-11-11 20:35:08,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831868980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:08,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94737187] [2024-11-11 20:35:08,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:08,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:08,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:08,244 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 20:35:08,245 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 20:35:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:08,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:35:08,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-11 20:35:08,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94737187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:08,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:08,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-11 20:35:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952328618] [2024-11-11 20:35:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:35:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:35:08,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:35:08,595 INFO L87 Difference]: Start difference. First operand 47794 states and 75512 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:09,075 INFO L93 Difference]: Finished difference Result 93375 states and 147900 transitions. [2024-11-11 20:35:09,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:35:09,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 102 [2024-11-11 20:35:09,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:09,194 INFO L225 Difference]: With dead ends: 93375 [2024-11-11 20:35:09,194 INFO L226 Difference]: Without dead ends: 47768 [2024-11-11 20:35:09,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:35:09,240 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 55 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:09,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 409 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:09,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47768 states. [2024-11-11 20:35:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47768 to 47760. [2024-11-11 20:35:10,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47760 states, 47736 states have (on average 1.5586349924585219) internal successors, (74403), 47739 states have internal predecessors, (74403), 14 states have call successors, (14), 7 states have call predecessors, (14), 9 states have return successors, (16), 13 states have call predecessors, (16), 13 states have call successors, (16) [2024-11-11 20:35:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47760 states to 47760 states and 74433 transitions. [2024-11-11 20:35:10,382 INFO L78 Accepts]: Start accepts. Automaton has 47760 states and 74433 transitions. Word has length 102 [2024-11-11 20:35:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:10,383 INFO L471 AbstractCegarLoop]: Abstraction has 47760 states and 74433 transitions. [2024-11-11 20:35:10,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 47760 states and 74433 transitions. [2024-11-11 20:35:10,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 20:35:10,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:10,405 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:10,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 20:35:10,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:10,607 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:10,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2054476804, now seen corresponding path program 1 times [2024-11-11 20:35:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536534327] [2024-11-11 20:35:10,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:10,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:35:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:35:11,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:11,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536534327] [2024-11-11 20:35:11,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536534327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:11,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655119468] [2024-11-11 20:35:11,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:11,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:11,043 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 20:35:11,045 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 20:35:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:11,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-11 20:35:11,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:35:11,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:11,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655119468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:11,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:11,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2024-11-11 20:35:11,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891223966] [2024-11-11 20:35:11,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:11,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:11,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:11,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:11,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2024-11-11 20:35:11,690 INFO L87 Difference]: Start difference. First operand 47760 states and 74433 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-11 20:35:12,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:12,661 INFO L93 Difference]: Finished difference Result 47927 states and 74650 transitions. [2024-11-11 20:35:12,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 20:35:12,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 102 [2024-11-11 20:35:12,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:12,752 INFO L225 Difference]: With dead ends: 47927 [2024-11-11 20:35:12,752 INFO L226 Difference]: Without dead ends: 47858 [2024-11-11 20:35:12,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=1456, Unknown=0, NotChecked=0, Total=1640 [2024-11-11 20:35:12,763 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 291 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:12,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1713 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 20:35:12,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47858 states. [2024-11-11 20:35:13,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47858 to 47840. [2024-11-11 20:35:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47840 states, 47800 states have (on average 1.558305439330544) internal successors, (74487), 47803 states have internal predecessors, (74487), 22 states have call successors, (22), 13 states have call predecessors, (22), 17 states have return successors, (28), 23 states have call predecessors, (28), 20 states have call successors, (28) [2024-11-11 20:35:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47840 states to 47840 states and 74537 transitions. [2024-11-11 20:35:13,747 INFO L78 Accepts]: Start accepts. Automaton has 47840 states and 74537 transitions. Word has length 102 [2024-11-11 20:35:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:13,747 INFO L471 AbstractCegarLoop]: Abstraction has 47840 states and 74537 transitions. [2024-11-11 20:35:13,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-11 20:35:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 47840 states and 74537 transitions. [2024-11-11 20:35:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 20:35:13,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:13,769 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:13,788 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 20:35:13,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:13,970 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:13,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:13,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1759949049, now seen corresponding path program 1 times [2024-11-11 20:35:13,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:13,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461406989] [2024-11-11 20:35:13,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:13,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:14,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:35:14,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461406989] [2024-11-11 20:35:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461406989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:14,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:14,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 20:35:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685250400] [2024-11-11 20:35:14,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:14,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:35:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:14,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:35:14,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:35:14,272 INFO L87 Difference]: Start difference. First operand 47840 states and 74537 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:16,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:16,393 INFO L93 Difference]: Finished difference Result 94064 states and 146753 transitions. [2024-11-11 20:35:16,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-11 20:35:16,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-11 20:35:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:16,566 INFO L225 Difference]: With dead ends: 94064 [2024-11-11 20:35:16,567 INFO L226 Difference]: Without dead ends: 93924 [2024-11-11 20:35:16,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2024-11-11 20:35:16,588 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 604 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:16,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 517 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93924 states. [2024-11-11 20:35:17,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93924 to 93572. [2024-11-11 20:35:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93572 states, 93489 states have (on average 1.5608788199681245) internal successors, (145925), 93496 states have internal predecessors, (145925), 47 states have call successors, (47), 24 states have call predecessors, (47), 35 states have return successors, (64), 51 states have call predecessors, (64), 43 states have call successors, (64) [2024-11-11 20:35:18,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93572 states to 93572 states and 146036 transitions. [2024-11-11 20:35:18,142 INFO L78 Accepts]: Start accepts. Automaton has 93572 states and 146036 transitions. Word has length 103 [2024-11-11 20:35:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:18,142 INFO L471 AbstractCegarLoop]: Abstraction has 93572 states and 146036 transitions. [2024-11-11 20:35:18,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:18,143 INFO L276 IsEmpty]: Start isEmpty. Operand 93572 states and 146036 transitions. [2024-11-11 20:35:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 20:35:18,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:18,182 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:18,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 20:35:18,183 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:18,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:18,183 INFO L85 PathProgramCache]: Analyzing trace with hash 85103677, now seen corresponding path program 1 times [2024-11-11 20:35:18,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:18,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160873331] [2024-11-11 20:35:18,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:18,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:35:18,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:18,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160873331] [2024-11-11 20:35:18,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160873331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:18,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:35:18,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-11 20:35:18,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390210356] [2024-11-11 20:35:18,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:18,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 20:35:18,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:18,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 20:35:18,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:35:18,844 INFO L87 Difference]: Start difference. First operand 93572 states and 146036 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 9 states have internal predecessors, (72), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-11 20:35:21,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:21,286 INFO L93 Difference]: Finished difference Result 94742 states and 147709 transitions. [2024-11-11 20:35:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-11 20:35:21,287 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 9 states have internal predecessors, (72), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 103 [2024-11-11 20:35:21,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:21,462 INFO L225 Difference]: With dead ends: 94742 [2024-11-11 20:35:21,462 INFO L226 Difference]: Without dead ends: 94104 [2024-11-11 20:35:21,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=1310, Unknown=0, NotChecked=0, Total=1560 [2024-11-11 20:35:21,490 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 483 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:21,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 915 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2158 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:35:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94104 states. [2024-11-11 20:35:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94104 to 93654. [2024-11-11 20:35:23,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93654 states, 93553 states have (on average 1.560666146462433) internal successors, (146005), 93561 states have internal predecessors, (146005), 63 states have call successors, (63), 28 states have call predecessors, (63), 37 states have return successors, (92), 64 states have call predecessors, (92), 59 states have call successors, (92) [2024-11-11 20:35:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93654 states to 93654 states and 146160 transitions. [2024-11-11 20:35:23,490 INFO L78 Accepts]: Start accepts. Automaton has 93654 states and 146160 transitions. Word has length 103 [2024-11-11 20:35:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:23,491 INFO L471 AbstractCegarLoop]: Abstraction has 93654 states and 146160 transitions. [2024-11-11 20:35:23,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 9 states have internal predecessors, (72), 6 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-11 20:35:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 93654 states and 146160 transitions. [2024-11-11 20:35:23,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 20:35:23,542 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:23,542 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:23,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-11 20:35:23,543 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:23,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:23,544 INFO L85 PathProgramCache]: Analyzing trace with hash -628188738, now seen corresponding path program 1 times [2024-11-11 20:35:23,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:23,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367847901] [2024-11-11 20:35:23,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:23,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:35:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:23,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367847901] [2024-11-11 20:35:23,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367847901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:23,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922792168] [2024-11-11 20:35:23,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:23,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:23,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:23,697 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 20:35:23,699 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 20:35:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:23,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:35:23,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:35:24,017 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:24,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922792168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:24,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:24,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-11 20:35:24,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367179396] [2024-11-11 20:35:24,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:24,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:24,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:35:24,019 INFO L87 Difference]: Start difference. First operand 93654 states and 146160 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:35:25,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:25,013 INFO L93 Difference]: Finished difference Result 93896 states and 146484 transitions. [2024-11-11 20:35:25,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:25,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 103 [2024-11-11 20:35:25,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:25,178 INFO L225 Difference]: With dead ends: 93896 [2024-11-11 20:35:25,178 INFO L226 Difference]: Without dead ends: 93658 [2024-11-11 20:35:25,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:35:25,207 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:25,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 673 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93658 states. [2024-11-11 20:35:26,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93658 to 93654. [2024-11-11 20:35:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93654 states, 93553 states have (on average 1.560666146462433) internal successors, (146005), 93561 states have internal predecessors, (146005), 63 states have call successors, (63), 28 states have call predecessors, (63), 37 states have return successors, (90), 64 states have call predecessors, (90), 59 states have call successors, (90) [2024-11-11 20:35:27,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93654 states to 93654 states and 146158 transitions. [2024-11-11 20:35:27,311 INFO L78 Accepts]: Start accepts. Automaton has 93654 states and 146158 transitions. Word has length 103 [2024-11-11 20:35:27,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:27,319 INFO L471 AbstractCegarLoop]: Abstraction has 93654 states and 146158 transitions. [2024-11-11 20:35:27,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:35:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 93654 states and 146158 transitions. [2024-11-11 20:35:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-11 20:35:27,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:27,393 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:27,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-11 20:35:27,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:27,595 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:27,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:27,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1821411392, now seen corresponding path program 1 times [2024-11-11 20:35:27,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:27,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153963121] [2024-11-11 20:35:27,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:27,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:35:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:35:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:35:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:35:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:35:27,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:27,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153963121] [2024-11-11 20:35:27,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153963121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:27,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387148231] [2024-11-11 20:35:27,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:27,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:27,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:27,753 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:27,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 20:35:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:28,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-11 20:35:28,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-11 20:35:28,195 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:28,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387148231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:28,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:28,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-11-11 20:35:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539099068] [2024-11-11 20:35:28,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:28,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:35:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:35:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:35:28,196 INFO L87 Difference]: Start difference. First operand 93654 states and 146158 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:29,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:29,489 INFO L93 Difference]: Finished difference Result 93936 states and 146502 transitions. [2024-11-11 20:35:29,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:35:29,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 103 [2024-11-11 20:35:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:29,659 INFO L225 Difference]: With dead ends: 93936 [2024-11-11 20:35:29,659 INFO L226 Difference]: Without dead ends: 93722 [2024-11-11 20:35:29,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-11 20:35:29,683 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 170 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:29,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1079 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 20:35:29,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93722 states. [2024-11-11 20:35:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93722 to 93697. [2024-11-11 20:35:31,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93697 states, 93586 states have (on average 1.5605005022118692) internal successors, (146041), 93594 states have internal predecessors, (146041), 64 states have call successors, (64), 37 states have call predecessors, (64), 46 states have return successors, (81), 65 states have call predecessors, (81), 58 states have call successors, (81) [2024-11-11 20:35:31,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93697 states to 93697 states and 146186 transitions. [2024-11-11 20:35:31,359 INFO L78 Accepts]: Start accepts. Automaton has 93697 states and 146186 transitions. Word has length 103 [2024-11-11 20:35:31,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:31,360 INFO L471 AbstractCegarLoop]: Abstraction has 93697 states and 146186 transitions. [2024-11-11 20:35:31,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:35:31,360 INFO L276 IsEmpty]: Start isEmpty. Operand 93697 states and 146186 transitions. [2024-11-11 20:35:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-11 20:35:31,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:31,398 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:31,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-11 20:35:31,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-11 20:35:31,603 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:31,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:31,603 INFO L85 PathProgramCache]: Analyzing trace with hash 522773175, now seen corresponding path program 1 times [2024-11-11 20:35:31,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:31,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278082227] [2024-11-11 20:35:31,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:31,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:35:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:35:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:35:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:35:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:35:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:31,879 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:35:31,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:31,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278082227] [2024-11-11 20:35:31,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278082227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:31,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378840152] [2024-11-11 20:35:31,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:31,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:31,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:31,881 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:31,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 20:35:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:32,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-11 20:35:32,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-11 20:35:32,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:32,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378840152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:32,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:32,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2024-11-11 20:35:32,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761976004] [2024-11-11 20:35:32,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:32,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:35:32,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:32,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:35:32,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2024-11-11 20:35:32,346 INFO L87 Difference]: Start difference. First operand 93697 states and 146186 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-11 20:35:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:34,073 INFO L93 Difference]: Finished difference Result 93928 states and 146473 transitions. [2024-11-11 20:35:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 20:35:34,074 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 104 [2024-11-11 20:35:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:34,224 INFO L225 Difference]: With dead ends: 93928 [2024-11-11 20:35:34,224 INFO L226 Difference]: Without dead ends: 93627 [2024-11-11 20:35:34,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=1204, Unknown=0, NotChecked=0, Total=1332 [2024-11-11 20:35:34,241 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 357 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:34,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1553 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 20:35:34,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93627 states. [2024-11-11 20:35:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93627 to 93601. [2024-11-11 20:35:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93601 states, 93510 states have (on average 1.560710084482943) internal successors, (145942), 93519 states have internal predecessors, (145942), 51 states have call successors, (51), 31 states have call predecessors, (51), 39 states have return successors, (63), 50 states have call predecessors, (63), 46 states have call successors, (63) [2024-11-11 20:35:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93601 states to 93601 states and 146056 transitions. [2024-11-11 20:35:35,994 INFO L78 Accepts]: Start accepts. Automaton has 93601 states and 146056 transitions. Word has length 104 [2024-11-11 20:35:35,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:35,994 INFO L471 AbstractCegarLoop]: Abstraction has 93601 states and 146056 transitions. [2024-11-11 20:35:35,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-11 20:35:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand 93601 states and 146056 transitions. [2024-11-11 20:35:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:35:36,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:35:36,042 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:36,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-11 20:35:36,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-11 20:35:36,242 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:35:36,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:35:36,243 INFO L85 PathProgramCache]: Analyzing trace with hash 457268617, now seen corresponding path program 1 times [2024-11-11 20:35:36,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:35:36,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009437214] [2024-11-11 20:35:36,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:36,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:35:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:35:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:35:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-11 20:35:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:35:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:35:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:35:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:35:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:35:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:35:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,392 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-11 20:35:36,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:35:36,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009437214] [2024-11-11 20:35:36,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009437214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:35:36,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843707035] [2024-11-11 20:35:36,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:35:36,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:35:36,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:35:36,395 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:35:36,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-11 20:35:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:35:36,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 20:35:36,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:35:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-11 20:35:36,659 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:35:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843707035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:35:36,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:35:36,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 11 [2024-11-11 20:35:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79138432] [2024-11-11 20:35:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:35:36,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:35:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:35:36,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:35:36,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:35:36,661 INFO L87 Difference]: Start difference. First operand 93601 states and 146056 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-11 20:35:37,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:35:37,753 INFO L93 Difference]: Finished difference Result 93601 states and 146056 transitions. [2024-11-11 20:35:37,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:35:37,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 114 [2024-11-11 20:35:37,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:35:37,762 INFO L225 Difference]: With dead ends: 93601 [2024-11-11 20:35:37,762 INFO L226 Difference]: Without dead ends: 0 [2024-11-11 20:35:37,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:35:37,818 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:35:37,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 681 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:35:37,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-11 20:35:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-11 20:35:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 20:35:37,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-11 20:35:37,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2024-11-11 20:35:37,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:35:37,824 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-11 20:35:37,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-11 20:35:37,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-11 20:35:37,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-11 20:35:37,827 INFO L782 garLoopResultBuilder]: Registering result SAFE for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-11 20:35:37,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-11 20:35:38,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-11 20:35:38,030 INFO L421 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:35:38,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.