./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i -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 d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:38:35,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:38:35,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:38:35,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:38:35,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:38:35,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:38:35,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:38:35,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:38:35,340 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:38:35,341 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:38:35,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:38:35,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:38:35,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:38:35,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:38:35,344 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:38:35,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:38:35,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:38:35,345 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:38:35,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:38:35,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:38:35,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:38:35,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:38:35,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:38:35,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:38:35,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:38:35,349 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:38:35,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:38:35,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:38:35,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:38:35,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:38:35,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:38:35,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:38:35,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:38:35,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:38:35,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:38:35,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:38:35,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d49d34698411f85a0a6e83adb869f73bcb1d6aade5262b0ab5e3122db7000276 [2024-10-12 20:38:35,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:38:35,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:38:35,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:38:35,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:38:35,567 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:38:35,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i [2024-10-12 20:38:36,920 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:38:37,098 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:38:37,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i [2024-10-12 20:38:37,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595daac57/de198422191d43ea8155b06a7195ef61/FLAG07ecd1c32 [2024-10-12 20:38:37,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595daac57/de198422191d43ea8155b06a7195ef61 [2024-10-12 20:38:37,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:38:37,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:38:37,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:38:37,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:38:37,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:38:37,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:37,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba44c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37, skipping insertion in model container [2024-10-12 20:38:37,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:37,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:38:37,721 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2024-10-12 20:38:37,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:38:37,850 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:38:37,903 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_lamport.i[23604,23617] [2024-10-12 20:38:37,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:38:37,999 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:38:37,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37 WrapperNode [2024-10-12 20:38:37,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:38:38,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:38:38,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:38:38,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:38:38,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,078 INFO L138 Inliner]: procedures = 145, calls = 351, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 469 [2024-10-12 20:38:38,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:38:38,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:38:38,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:38:38,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:38:38,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,118 INFO L175 MemorySlicer]: Split 160 memory accesses to 19 slices as follows [2, 8, 8, 5, 29, 21, 7, 5, 7, 7, 7, 7, 13, 5, 13, 5, 6, 0, 5]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 3, 3, 0, 9, 9, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 2, 0, 0]. The 40 writes are split as follows [0, 2, 2, 1, 11, 6, 2, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 0, 1]. [2024-10-12 20:38:38,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:38:38,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:38:38,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:38:38,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:38:38,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (1/1) ... [2024-10-12 20:38:38,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:38:38,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:38,197 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) [2024-10-12 20:38:38,199 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 [2024-10-12 20:38:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 20:38:38,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 20:38:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 20:38:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 20:38:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-12 20:38:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-12 20:38:38,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-12 20:38:38,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 20:38:38,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 20:38:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-12 20:38:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-12 20:38:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-12 20:38:38,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-12 20:38:38,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-12 20:38:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-12 20:38:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-10-12 20:38:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-10-12 20:38:38,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 20:38:38,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-12 20:38:38,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-12 20:38:38,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-12 20:38:38,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-12 20:38:38,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-10-12 20:38:38,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-10-12 20:38:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-10-12 20:38:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-10-12 20:38:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-12 20:38:38,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-12 20:38:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 20:38:38,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-12 20:38:38,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-10-12 20:38:38,246 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-12 20:38:38,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 20:38:38,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-12 20:38:38,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-12 20:38:38,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:38:38,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:38:38,476 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:38:38,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:38:43,033 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-10-12 20:38:43,033 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:38:43,060 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:38:43,060 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 20:38:43,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:38:43 BoogieIcfgContainer [2024-10-12 20:38:43,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:38:43,062 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:38:43,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:38:43,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:38:43,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:38:37" (1/3) ... [2024-10-12 20:38:43,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344d1433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:38:43, skipping insertion in model container [2024-10-12 20:38:43,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:37" (2/3) ... [2024-10-12 20:38:43,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344d1433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:38:43, skipping insertion in model container [2024-10-12 20:38:43,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:38:43" (3/3) ... [2024-10-12 20:38:43,067 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lamport.i [2024-10-12 20:38:43,080 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:38:43,081 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:38:43,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:38:43,146 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;@384d4c5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:38:43,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:38:43,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 68 states have (on average 1.338235294117647) internal successors, (91), 69 states have internal predecessors, (91), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-12 20:38:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-12 20:38:43,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:43,164 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:43,165 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:43,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:43,168 INFO L85 PathProgramCache]: Analyzing trace with hash -418329354, now seen corresponding path program 1 times [2024-10-12 20:38:43,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:43,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460364618] [2024-10-12 20:38:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:43,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 20:38:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 20:38:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-12 20:38:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 20:38:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 20:38:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:38:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:38:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:38:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:38:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:38:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:43,865 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-12 20:38:43,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:43,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460364618] [2024-10-12 20:38:43,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460364618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:43,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:43,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:43,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238974686] [2024-10-12 20:38:43,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:43,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:43,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:43,892 INFO L87 Difference]: Start difference. First operand has 111 states, 68 states have (on average 1.338235294117647) internal successors, (91), 69 states have internal predecessors, (91), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-12 20:38:43,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:43,974 INFO L93 Difference]: Finished difference Result 224 states and 366 transitions. [2024-10-12 20:38:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:43,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 143 [2024-10-12 20:38:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:43,987 INFO L225 Difference]: With dead ends: 224 [2024-10-12 20:38:43,987 INFO L226 Difference]: Without dead ends: 112 [2024-10-12 20:38:43,991 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:43,995 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 3 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:43,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 303 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-12 20:38:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2024-10-12 20:38:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 68 states have (on average 1.2647058823529411) internal successors, (86), 68 states have internal predecessors, (86), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-12 20:38:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2024-10-12 20:38:44,034 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 143 [2024-10-12 20:38:44,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:44,034 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2024-10-12 20:38:44,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-12 20:38:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2024-10-12 20:38:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-12 20:38:44,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:44,037 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:44,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:38:44,038 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:44,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash 2117031662, now seen corresponding path program 1 times [2024-10-12 20:38:44,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:44,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005158753] [2024-10-12 20:38:44,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:44,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 20:38:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 20:38:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 20:38:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 20:38:44,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 20:38:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 20:38:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 20:38:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 20:38:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 20:38:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 20:38:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 20:38:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 20:38:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 20:38:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 20:38:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 20:38:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 20:38:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 20:38:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 20:38:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 20:38:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-12 20:38:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-12 20:38:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-12 20:38:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-12 20:38:44,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:44,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005158753] [2024-10-12 20:38:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005158753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:44,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654308847] [2024-10-12 20:38:44,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:44,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:44,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:44,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:44,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:44,382 INFO L87 Difference]: Start difference. First operand 110 states and 158 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-12 20:38:44,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:44,425 INFO L93 Difference]: Finished difference Result 219 states and 316 transitions. [2024-10-12 20:38:44,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:44,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 146 [2024-10-12 20:38:44,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:44,427 INFO L225 Difference]: With dead ends: 219 [2024-10-12 20:38:44,427 INFO L226 Difference]: Without dead ends: 111 [2024-10-12 20:38:44,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:44,429 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:44,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-12 20:38:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-10-12 20:38:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-12 20:38:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-10-12 20:38:44,443 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 146 [2024-10-12 20:38:44,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:44,443 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-10-12 20:38:44,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-12 20:38:44,444 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-10-12 20:38:44,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-12 20:38:44,446 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:44,446 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:44,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:38:44,446 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:44,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:44,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1200437592, now seen corresponding path program 1 times [2024-10-12 20:38:44,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:44,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883591933] [2024-10-12 20:38:44,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:44,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 20:38:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-12 20:38:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:38:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:38:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-12 20:38:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:38:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:38:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 20:38:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 20:38:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 20:38:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 20:38:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 20:38:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 20:38:44,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:38:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:38:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:38:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:38:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:38:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:38:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:38:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:38:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:38:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-12 20:38:44,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883591933] [2024-10-12 20:38:44,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883591933] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36493876] [2024-10-12 20:38:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:44,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:44,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:44,702 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) [2024-10-12 20:38:44,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 20:38:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 20:38:45,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-12 20:38:45,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:38:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-12 20:38:45,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36493876] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:38:45,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:38:45,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-12 20:38:45,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147241555] [2024-10-12 20:38:45,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:38:45,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:38:45,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:45,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:38:45,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:38:45,324 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-10-12 20:38:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:45,396 INFO L93 Difference]: Finished difference Result 222 states and 320 transitions. [2024-10-12 20:38:45,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:38:45,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 147 [2024-10-12 20:38:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:45,398 INFO L225 Difference]: With dead ends: 222 [2024-10-12 20:38:45,399 INFO L226 Difference]: Without dead ends: 113 [2024-10-12 20:38:45,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 335 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:38:45,400 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:45,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 757 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-12 20:38:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-10-12 20:38:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-12 20:38:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 161 transitions. [2024-10-12 20:38:45,409 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 161 transitions. Word has length 147 [2024-10-12 20:38:45,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:45,409 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 161 transitions. [2024-10-12 20:38:45,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2024-10-12 20:38:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 161 transitions. [2024-10-12 20:38:45,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-12 20:38:45,411 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:45,411 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:45,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 20:38:45,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:45,612 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:45,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:45,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1822780392, now seen corresponding path program 2 times [2024-10-12 20:38:45,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:45,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853211579] [2024-10-12 20:38:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:45,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 20:38:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-12 20:38:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 20:38:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 20:38:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:38:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:38:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:38:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:38:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:38:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:38:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2024-10-12 20:38:45,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:45,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853211579] [2024-10-12 20:38:45,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853211579] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:45,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809595043] [2024-10-12 20:38:45,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 20:38:45,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:45,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:45,983 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) [2024-10-12 20:38:45,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 20:38:46,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 20:38:46,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 20:38:46,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 20:38:46,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:46,568 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2024-10-12 20:38:46,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 20:38:46,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809595043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:46,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 20:38:46,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 20:38:46,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467321226] [2024-10-12 20:38:46,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:46,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:38:46,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:46,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:38:46,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:38:46,571 INFO L87 Difference]: Start difference. First operand 113 states and 161 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-12 20:38:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:46,651 INFO L93 Difference]: Finished difference Result 215 states and 312 transitions. [2024-10-12 20:38:46,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:38:46,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 149 [2024-10-12 20:38:46,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:46,654 INFO L225 Difference]: With dead ends: 215 [2024-10-12 20:38:46,654 INFO L226 Difference]: Without dead ends: 165 [2024-10-12 20:38:46,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-12 20:38:46,660 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:46,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 476 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:46,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-12 20:38:46,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-10-12 20:38:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 105 states have (on average 1.2952380952380953) internal successors, (136), 105 states have internal predecessors, (136), 49 states have call successors, (49), 10 states have call predecessors, (49), 10 states have return successors, (53), 49 states have call predecessors, (53), 49 states have call successors, (53) [2024-10-12 20:38:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 238 transitions. [2024-10-12 20:38:46,687 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 238 transitions. Word has length 149 [2024-10-12 20:38:46,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:46,687 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 238 transitions. [2024-10-12 20:38:46,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2024-10-12 20:38:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 238 transitions. [2024-10-12 20:38:46,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-10-12 20:38:46,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:46,692 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:46,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 20:38:46,892 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,SelfDestructingSolverStorable3 [2024-10-12 20:38:46,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:46,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:46,894 INFO L85 PathProgramCache]: Analyzing trace with hash -509828939, now seen corresponding path program 1 times [2024-10-12 20:38:46,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:46,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115462041] [2024-10-12 20:38:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:46,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 20:38:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 20:38:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 20:38:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:38:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:38:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 20:38:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 20:38:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:38:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:38:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:38:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:38:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:38:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:38:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:38:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:38:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:38:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:38:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:38:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:38:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:38:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:38:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:38:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:38:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:38:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:38:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:38:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:38:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2024-10-12 20:38:47,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:47,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115462041] [2024-10-12 20:38:47,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115462041] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:47,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123960085] [2024-10-12 20:38:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:47,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:47,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:47,358 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) [2024-10-12 20:38:47,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 20:38:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:47,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 1519 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 20:38:47,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2024-10-12 20:38:47,853 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:38:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2024-10-12 20:38:48,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123960085] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:38:48,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:38:48,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 10 [2024-10-12 20:38:48,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529651283] [2024-10-12 20:38:48,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:38:48,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 20:38:48,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:48,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 20:38:48,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-12 20:38:48,053 INFO L87 Difference]: Start difference. First operand 165 states and 238 transitions. Second operand has 10 states, 10 states have (on average 9.4) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (70), 6 states have call predecessors, (70), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-10-12 20:38:52,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:38:56,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:38:57,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:57,089 INFO L93 Difference]: Finished difference Result 342 states and 494 transitions. [2024-10-12 20:38:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:38:57,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (70), 6 states have call predecessors, (70), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 213 [2024-10-12 20:38:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:57,092 INFO L225 Difference]: With dead ends: 342 [2024-10-12 20:38:57,093 INFO L226 Difference]: Without dead ends: 185 [2024-10-12 20:38:57,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 487 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-12 20:38:57,095 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 33 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 38 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:57,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 372 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 375 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2024-10-12 20:38:57,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-10-12 20:38:57,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2024-10-12 20:38:57,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 119 states have (on average 1.2773109243697478) internal successors, (152), 121 states have internal predecessors, (152), 49 states have call successors, (49), 10 states have call predecessors, (49), 12 states have return successors, (57), 49 states have call predecessors, (57), 49 states have call successors, (57) [2024-10-12 20:38:57,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 258 transitions. [2024-10-12 20:38:57,122 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 258 transitions. Word has length 213 [2024-10-12 20:38:57,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:57,122 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 258 transitions. [2024-10-12 20:38:57,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.4) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (70), 6 states have call predecessors, (70), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-10-12 20:38:57,123 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 258 transitions. [2024-10-12 20:38:57,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-12 20:38:57,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:57,126 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:38:57,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 20:38:57,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:57,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:57,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:57,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1561945135, now seen corresponding path program 2 times [2024-10-12 20:38:57,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:57,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269373443] [2024-10-12 20:38:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:57,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 20:38:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 20:38:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 20:38:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:38:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:38:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:38:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:38:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:38:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:38:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:38:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:38:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:38:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:38:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:38:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:38:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:38:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:38:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:38:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:38:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:38:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:38:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:38:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:38:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:38:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:38:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-12 20:38:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-12 20:38:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2024-10-12 20:38:58,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:58,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269373443] [2024-10-12 20:38:58,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269373443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:58,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:58,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:38:58,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281351890] [2024-10-12 20:38:58,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:58,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:38:58,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:58,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:38:58,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:38:58,165 INFO L87 Difference]: Start difference. First operand 181 states and 258 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-12 20:39:02,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:06,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:10,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:12,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:12,205 INFO L93 Difference]: Finished difference Result 483 states and 697 transitions. [2024-10-12 20:39:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:39:12,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2024-10-12 20:39:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:12,209 INFO L225 Difference]: With dead ends: 483 [2024-10-12 20:39:12,209 INFO L226 Difference]: Without dead ends: 339 [2024-10-12 20:39:12,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:39:12,210 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 205 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 177 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:12,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 637 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 597 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2024-10-12 20:39:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-12 20:39:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 329. [2024-10-12 20:39:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 208 states have (on average 1.2740384615384615) internal successors, (265), 213 states have internal predecessors, (265), 95 states have call successors, (95), 20 states have call predecessors, (95), 25 states have return successors, (118), 95 states have call predecessors, (118), 95 states have call successors, (118) [2024-10-12 20:39:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 478 transitions. [2024-10-12 20:39:12,249 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 478 transitions. Word has length 225 [2024-10-12 20:39:12,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:12,249 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 478 transitions. [2024-10-12 20:39:12,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-12 20:39:12,249 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 478 transitions. [2024-10-12 20:39:12,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-12 20:39:12,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:12,252 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:12,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:39:12,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:12,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1228066225, now seen corresponding path program 1 times [2024-10-12 20:39:12,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:12,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596291704] [2024-10-12 20:39:12,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:12,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 20:39:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 20:39:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 20:39:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:39:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:39:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:39:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:39:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:39:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:39:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:39:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:39:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:39:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:39:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:39:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:39:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:39:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:39:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:39:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:39:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:39:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:39:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:39:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:39:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:39:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:39:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:39:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:39:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-12 20:39:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-12 20:39:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2024-10-12 20:39:13,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:13,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596291704] [2024-10-12 20:39:13,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596291704] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:39:13,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:39:13,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:39:13,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234404739] [2024-10-12 20:39:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:39:13,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:39:13,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:13,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:39:13,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:39:13,064 INFO L87 Difference]: Start difference. First operand 329 states and 478 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-12 20:39:15,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:19,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:23,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:27,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:31,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:35,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:36,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:36,705 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2024-10-12 20:39:36,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:39:36,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 225 [2024-10-12 20:39:36,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:36,709 INFO L225 Difference]: With dead ends: 605 [2024-10-12 20:39:36,709 INFO L226 Difference]: Without dead ends: 306 [2024-10-12 20:39:36,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:39:36,711 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 148 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 53 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:36,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 690 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 713 Invalid, 5 Unknown, 0 Unchecked, 23.4s Time] [2024-10-12 20:39:36,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-10-12 20:39:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2024-10-12 20:39:36,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 189 states have (on average 1.2328042328042328) internal successors, (233), 193 states have internal predecessors, (233), 86 states have call successors, (86), 18 states have call predecessors, (86), 22 states have return successors, (100), 86 states have call predecessors, (100), 86 states have call successors, (100) [2024-10-12 20:39:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 419 transitions. [2024-10-12 20:39:36,739 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 419 transitions. Word has length 225 [2024-10-12 20:39:36,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:36,739 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 419 transitions. [2024-10-12 20:39:36,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (31), 5 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-10-12 20:39:36,740 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 419 transitions. [2024-10-12 20:39:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-12 20:39:36,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:36,742 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:36,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:39:36,742 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:36,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash -354795631, now seen corresponding path program 1 times [2024-10-12 20:39:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581172730] [2024-10-12 20:39:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:36,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 20:39:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 20:39:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 20:39:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:39:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:39:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:39:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:39:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:39:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:39:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:39:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:39:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:39:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:39:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:39:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:39:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:39:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:39:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:39:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:39:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:39:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:39:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:39:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:39:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:39:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:39:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:39:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:39:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-12 20:39:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-12 20:39:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2024-10-12 20:39:37,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:37,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581172730] [2024-10-12 20:39:37,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581172730] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:37,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70419931] [2024-10-12 20:39:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:37,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:37,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:37,706 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) [2024-10-12 20:39:37,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 20:39:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:38,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 1833 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 20:39:38,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:38,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 352 proven. 4 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2024-10-12 20:39:38,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:39:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1399 trivial. 0 not checked. [2024-10-12 20:39:38,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70419931] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:39:38,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:39:38,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-10-12 20:39:38,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713171805] [2024-10-12 20:39:38,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:39:38,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-12 20:39:38,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:38,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-12 20:39:38,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-12 20:39:38,881 INFO L87 Difference]: Start difference. First operand 298 states and 419 transitions. Second operand has 16 states, 16 states have (on average 5.5) internal successors, (88), 12 states have internal predecessors, (88), 9 states have call successors, (64), 8 states have call predecessors, (64), 7 states have return successors, (63), 7 states have call predecessors, (63), 9 states have call successors, (63) [2024-10-12 20:39:42,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:44,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:48,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:49,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:49,980 INFO L93 Difference]: Finished difference Result 584 states and 840 transitions. [2024-10-12 20:39:49,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 20:39:49,982 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 12 states have internal predecessors, (88), 9 states have call successors, (64), 8 states have call predecessors, (64), 7 states have return successors, (63), 7 states have call predecessors, (63), 9 states have call successors, (63) Word has length 225 [2024-10-12 20:39:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:49,985 INFO L225 Difference]: With dead ends: 584 [2024-10-12 20:39:49,986 INFO L226 Difference]: Without dead ends: 313 [2024-10-12 20:39:49,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-10-12 20:39:49,988 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 249 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 137 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:49,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 656 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 771 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-10-12 20:39:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-12 20:39:50,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 307. [2024-10-12 20:39:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 199 states have (on average 1.2663316582914572) internal successors, (252), 203 states have internal predecessors, (252), 77 states have call successors, (77), 26 states have call predecessors, (77), 30 states have return successors, (101), 77 states have call predecessors, (101), 77 states have call successors, (101) [2024-10-12 20:39:50,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 430 transitions. [2024-10-12 20:39:50,014 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 430 transitions. Word has length 225 [2024-10-12 20:39:50,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:50,014 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 430 transitions. [2024-10-12 20:39:50,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.5) internal successors, (88), 12 states have internal predecessors, (88), 9 states have call successors, (64), 8 states have call predecessors, (64), 7 states have return successors, (63), 7 states have call predecessors, (63), 9 states have call successors, (63) [2024-10-12 20:39:50,015 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 430 transitions. [2024-10-12 20:39:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-10-12 20:39:50,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:50,017 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 9, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:39:50,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 20:39:50,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:50,222 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:50,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2118025875, now seen corresponding path program 1 times [2024-10-12 20:39:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:50,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460219284] [2024-10-12 20:39:50,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:50,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:51,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 20:39:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 20:39:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-12 20:39:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:52,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:39:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:39:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:39:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:39:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:39:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:39:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:39:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:39:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:39:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:39:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:39:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-12 20:39:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-12 20:39:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-12 20:39:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-12 20:39:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-12 20:39:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-12 20:39:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-12 20:39:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-12 20:39:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-12 20:39:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-10-12 20:39:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-10-12 20:39:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-12 20:39:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-12 20:39:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-12 20:39:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-10-12 20:39:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:52,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2024-10-12 20:39:52,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:52,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460219284] [2024-10-12 20:39:52,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460219284] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:52,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16806117] [2024-10-12 20:39:52,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:52,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:52,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:52,608 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) [2024-10-12 20:39:52,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 20:39:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:53,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 1919 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-12 20:39:53,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:53,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-12 20:40:00,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-12 20:40:00,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 20:40:00,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2024-10-12 20:40:01,565 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2024-10-12 20:40:01,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104