./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_dekker.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_dekker.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 ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:38:03,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:38:03,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:38:04,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:38:04,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:38:04,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:38:04,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:38:04,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:38:04,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:38:04,032 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:38:04,033 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:38:04,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:38:04,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:38:04,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:38:04,035 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:38:04,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:38:04,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:38:04,036 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:38:04,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:38:04,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:38:04,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:38:04,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:38:04,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:38:04,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:38:04,039 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:38:04,039 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:38:04,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:38:04,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:38:04,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:38:04,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:38:04,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:38:04,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:38:04,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:38:04,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:38:04,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:38:04,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:38:04,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:38:04,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:38:04,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:38:04,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:38:04,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:38:04,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:38:04,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee7ff83d9ca4f9baaadd009c98a7dd30697b6140296199117a6b05757b5b9f74 [2024-10-12 20:38:04,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:38:04,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:38:04,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:38:04,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:38:04,339 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:38:04,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_dekker.i [2024-10-12 20:38:05,820 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:38:06,071 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:38:06,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_dekker.i [2024-10-12 20:38:06,089 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c89d9e4ee/ffb059bca77347229d95a25afa9aa453/FLAGd757bda55 [2024-10-12 20:38:06,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c89d9e4ee/ffb059bca77347229d95a25afa9aa453 [2024-10-12 20:38:06,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:38:06,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:38:06,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:38:06,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:38:06,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:38:06,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b888843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06, skipping insertion in model container [2024-10-12 20:38:06,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:38:06,489 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_dekker.i[23603,23616] [2024-10-12 20:38:06,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:38:06,646 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:38:06,686 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_dekker.i[23603,23616] [2024-10-12 20:38:06,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:38:06,821 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:38:06,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06 WrapperNode [2024-10-12 20:38:06,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:38:06,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:38:06,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:38:06,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:38:06,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,905 INFO L138 Inliner]: procedures = 145, calls = 300, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 455 [2024-10-12 20:38:06,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:38:06,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:38:06,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:38:06,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:38:06,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,930 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,980 INFO L175 MemorySlicer]: Split 150 memory accesses to 17 slices as follows [2, 8, 8, 0, 29, 21, 5, 13, 7, 7, 9, 7, 5, 13, 5, 5, 6]. 19 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 3, 3, 0, 9, 9, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 2]. The 37 writes are split as follows [0, 2, 2, 0, 11, 6, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2]. [2024-10-12 20:38:06,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:06,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:07,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:07,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:07,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:07,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:07,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:38:07,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:38:07,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:38:07,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:38:07,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (1/1) ... [2024-10-12 20:38:07,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:38:07,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:07,120 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 20:38:07,122 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 20:38:07,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 20:38:07,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 20:38:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 20:38:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 20:38:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-12 20:38:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-12 20:38:07,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-12 20:38:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-12 20:38:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-12 20:38:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-12 20:38:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-12 20:38:07,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 20:38:07,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 20:38:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 20:38:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 20:38:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-12 20:38:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-12 20:38:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-12 20:38:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-12 20:38:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-12 20:38:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-12 20:38:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-12 20:38:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-12 20:38:07,180 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-12 20:38:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:38:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 20:38:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-12 20:38:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-12 20:38:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-12 20:38:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-12 20:38:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-10-12 20:38:07,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-10-12 20:38:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-12 20:38:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-12 20:38:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-12 20:38:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-12 20:38:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-12 20:38:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-12 20:38:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-12 20:38:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-12 20:38:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-12 20:38:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-12 20:38:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-12 20:38:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-10-12 20:38:07,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-10-12 20:38:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-12 20:38:07,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-10-12 20:38:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 20:38:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-12 20:38:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-12 20:38:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-12 20:38:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-12 20:38:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-12 20:38:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-12 20:38:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-12 20:38:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-12 20:38:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-12 20:38:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-12 20:38:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-12 20:38:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-12 20:38:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-12 20:38:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-12 20:38:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-12 20:38:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-12 20:38:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-12 20:38:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-10-12 20:38:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 20:38:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 20:38:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-12 20:38:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-12 20:38:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-12 20:38:07,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-12 20:38:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-12 20:38:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-12 20:38:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-12 20:38:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-12 20:38:07,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:38:07,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:38:07,479 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:38:07,481 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:38:09,345 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-10-12 20:38:09,345 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:38:09,395 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:38:09,395 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 20:38:09,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:38:09 BoogieIcfgContainer [2024-10-12 20:38:09,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:38:09,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:38:09,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:38:09,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:38:09,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:38:06" (1/3) ... [2024-10-12 20:38:09,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334707dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:38:09, skipping insertion in model container [2024-10-12 20:38:09,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:38:06" (2/3) ... [2024-10-12 20:38:09,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334707dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:38:09, skipping insertion in model container [2024-10-12 20:38:09,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:38:09" (3/3) ... [2024-10-12 20:38:09,406 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_dekker.i [2024-10-12 20:38:09,423 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:38:09,424 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:38:09,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:38:09,585 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;@1173c85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:38:09,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:38:09,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 72 states have internal predecessors, (97), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-12 20:38:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:38:09,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:09,610 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:09,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:09,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:09,617 INFO L85 PathProgramCache]: Analyzing trace with hash 405785806, now seen corresponding path program 1 times [2024-10-12 20:38:09,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:09,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326879004] [2024-10-12 20:38:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:09,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 20:38:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 20:38:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-12 20:38:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 20:38:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 20:38:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:38:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:38:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:38:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:38:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-12 20:38:10,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:10,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326879004] [2024-10-12 20:38:10,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326879004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:10,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 20:38:10,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430167603] [2024-10-12 20:38:10,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:10,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 20:38:10,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:10,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 20:38:10,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 20:38:10,302 INFO L87 Difference]: Start difference. First operand has 113 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 72 states have internal predecessors, (97), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:10,380 INFO L93 Difference]: Finished difference Result 225 states and 366 transitions. [2024-10-12 20:38:10,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 20:38:10,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-10-12 20:38:10,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:10,392 INFO L225 Difference]: With dead ends: 225 [2024-10-12 20:38:10,393 INFO L226 Difference]: Without dead ends: 111 [2024-10-12 20:38:10,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 20:38:10,407 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:10,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:10,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-12 20:38:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-10-12 20:38:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-12 20:38:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2024-10-12 20:38:10,459 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 131 [2024-10-12 20:38:10,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:10,461 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2024-10-12 20:38:10,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2024-10-12 20:38:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-12 20:38:10,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:10,467 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:10,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:38:10,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:10,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:10,468 INFO L85 PathProgramCache]: Analyzing trace with hash 194506872, now seen corresponding path program 1 times [2024-10-12 20:38:10,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:10,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339438660] [2024-10-12 20:38:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:10,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-12 20:38:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 20:38:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-12 20:38:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 20:38:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 20:38:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:38:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:38:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:38:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:38:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-12 20:38:10,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:10,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339438660] [2024-10-12 20:38:10,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339438660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:10,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:10,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:10,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299166390] [2024-10-12 20:38:10,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:10,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:10,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:10,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:10,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:10,933 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:11,010 INFO L93 Difference]: Finished difference Result 221 states and 321 transitions. [2024-10-12 20:38:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:11,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 131 [2024-10-12 20:38:11,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:11,014 INFO L225 Difference]: With dead ends: 221 [2024-10-12 20:38:11,015 INFO L226 Difference]: Without dead ends: 114 [2024-10-12 20:38:11,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 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 20:38:11,018 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 3 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:11,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 309 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:11,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-12 20:38:11,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 112. [2024-10-12 20:38:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.295774647887324) internal successors, (92), 71 states have internal predecessors, (92), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-12 20:38:11,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2024-10-12 20:38:11,046 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 131 [2024-10-12 20:38:11,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:11,046 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2024-10-12 20:38:11,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:11,047 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2024-10-12 20:38:11,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-12 20:38:11,050 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:11,050 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:11,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:38:11,051 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:11,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:11,051 INFO L85 PathProgramCache]: Analyzing trace with hash -835741424, now seen corresponding path program 1 times [2024-10-12 20:38:11,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:11,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663432384] [2024-10-12 20:38:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-12 20:38:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 20:38:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 20:38:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-12 20:38:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 20:38:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 20:38:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 20:38:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 20:38:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 20:38:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 20:38:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 20:38:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 20:38:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 20:38:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 20:38:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 20:38:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 20:38:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-12 20:38:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-12 20:38:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-12 20:38:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-12 20:38:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-12 20:38:11,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:11,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663432384] [2024-10-12 20:38:11,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663432384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:11,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:11,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:38:11,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608612984] [2024-10-12 20:38:11,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:11,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:38:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:38:11,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:38:11,477 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:11,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:11,538 INFO L93 Difference]: Finished difference Result 223 states and 324 transitions. [2024-10-12 20:38:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:38:11,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2024-10-12 20:38:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:11,541 INFO L225 Difference]: With dead ends: 223 [2024-10-12 20:38:11,541 INFO L226 Difference]: Without dead ends: 113 [2024-10-12 20:38:11,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 20:38:11,542 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 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 20:38:11,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:38:11,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-12 20:38:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-10-12 20:38:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 72 states have (on average 1.2916666666666667) internal successors, (93), 72 states have internal predecessors, (93), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-12 20:38:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 163 transitions. [2024-10-12 20:38:11,568 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 163 transitions. Word has length 134 [2024-10-12 20:38:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:11,568 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 163 transitions. [2024-10-12 20:38:11,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 163 transitions. [2024-10-12 20:38:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-12 20:38:11,571 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:11,571 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:11,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:38:11,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:11,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash -918721409, now seen corresponding path program 1 times [2024-10-12 20:38:11,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:11,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816920586] [2024-10-12 20:38:11,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:11,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 20:38:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-12 20:38:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:38:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:38:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-12 20:38:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 20:38:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 20:38:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 20:38:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 20:38:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 20:38:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 20:38:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 20:38:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 20:38:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 20:38:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 20:38:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 20:38:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-12 20:38:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-12 20:38:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-12 20:38:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-12 20:38:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-12 20:38:11,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:11,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816920586] [2024-10-12 20:38:11,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816920586] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:11,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460557748] [2024-10-12 20:38:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:11,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:11,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:11,927 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 20:38:11,928 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 20:38:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:12,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 20:38:12,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-12 20:38:12,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:38:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-12 20:38:12,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460557748] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:38:12,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:38:12,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-10-12 20:38:12,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729389841] [2024-10-12 20:38:12,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:38:12,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 20:38:12,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:12,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 20:38:12,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:38:12,599 INFO L87 Difference]: Start difference. First operand 113 states and 163 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-12 20:38:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:12,686 INFO L93 Difference]: Finished difference Result 226 states and 328 transitions. [2024-10-12 20:38:12,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:38:12,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 135 [2024-10-12 20:38:12,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:12,688 INFO L225 Difference]: With dead ends: 226 [2024-10-12 20:38:12,688 INFO L226 Difference]: Without dead ends: 115 [2024-10-12 20:38:12,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 307 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 20:38:12,690 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:12,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 622 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:12,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-12 20:38:12,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-10-12 20:38:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 74 states have internal predecessors, (95), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-10-12 20:38:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 165 transitions. [2024-10-12 20:38:12,700 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 165 transitions. Word has length 135 [2024-10-12 20:38:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:12,700 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 165 transitions. [2024-10-12 20:38:12,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-10-12 20:38:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 165 transitions. [2024-10-12 20:38:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-12 20:38:12,702 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:12,703 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 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] [2024-10-12 20:38:12,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 20:38:12,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:12,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:12,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:12,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1630487905, now seen corresponding path program 2 times [2024-10-12 20:38:12,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:12,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457942319] [2024-10-12 20:38:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:12,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 20:38:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 20:38:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 20:38:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-12 20:38:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-12 20:38:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 20:38:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 20:38:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 20:38:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 20:38:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 20:38:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:13,236 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2024-10-12 20:38:13,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:13,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457942319] [2024-10-12 20:38:13,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457942319] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:13,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178860660] [2024-10-12 20:38:13,237 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 20:38:13,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:13,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:13,239 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 20:38:13,240 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 20:38:13,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-12 20:38:13,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 20:38:13,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 20:38:13,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2024-10-12 20:38:13,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 20:38:13,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178860660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:13,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 20:38:13,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 20:38:13,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762454756] [2024-10-12 20:38:13,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:13,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:38:13,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:13,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:38:13,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 20:38:13,887 INFO L87 Difference]: Start difference. First operand 115 states and 165 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:13,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:13,975 INFO L93 Difference]: Finished difference Result 219 states and 320 transitions. [2024-10-12 20:38:13,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:38:13,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 137 [2024-10-12 20:38:13,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:13,980 INFO L225 Difference]: With dead ends: 219 [2024-10-12 20:38:13,980 INFO L226 Difference]: Without dead ends: 173 [2024-10-12 20:38:13,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 175 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 20:38:13,982 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 82 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:13,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 488 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:38:13,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-10-12 20:38:14,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-10-12 20:38:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 113 states have internal predecessors, (150), 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 20:38:14,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 252 transitions. [2024-10-12 20:38:14,011 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 252 transitions. Word has length 137 [2024-10-12 20:38:14,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:14,011 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 252 transitions. [2024-10-12 20:38:14,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-12 20:38:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 252 transitions. [2024-10-12 20:38:14,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-12 20:38:14,017 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:14,017 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 5, 5, 5, 5, 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, 1] [2024-10-12 20:38:14,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 20:38:14,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:14,222 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:14,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash 423740329, now seen corresponding path program 1 times [2024-10-12 20:38:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:14,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883958240] [2024-10-12 20:38:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:14,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 20:38:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:38:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:38:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 20:38:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 20:38:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 20:38:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 20:38:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:38:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:38:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:38:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:38:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:38:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:38:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:38:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:38:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:38:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:38:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:38:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:38:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:38:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:14,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-10-12 20:38:14,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:14,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883958240] [2024-10-12 20:38:14,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883958240] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:38:14,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719521519] [2024-10-12 20:38:14,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:14,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:14,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:38:14,860 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 20:38:14,861 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 20:38:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:15,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 20:38:15,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:38:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-10-12 20:38:15,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:38:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-10-12 20:38:15,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719521519] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:38:15,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:38:15,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 4] total 10 [2024-10-12 20:38:15,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450752589] [2024-10-12 20:38:15,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:38:15,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 20:38:15,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:15,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 20:38:15,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-12 20:38:15,671 INFO L87 Difference]: Start difference. First operand 173 states and 252 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (69), 6 states have call predecessors, (69), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-10-12 20:38:20,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:38:24,023 WARN L539 Checker$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 20:38:24,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:24,806 INFO L93 Difference]: Finished difference Result 358 states and 522 transitions. [2024-10-12 20:38:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:38:24,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (69), 6 states have call predecessors, (69), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 215 [2024-10-12 20:38:24,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:24,809 INFO L225 Difference]: With dead ends: 358 [2024-10-12 20:38:24,809 INFO L226 Difference]: Without dead ends: 193 [2024-10-12 20:38:24,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 491 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 20:38:24,811 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 41 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 37 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:24,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 482 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 444 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2024-10-12 20:38:24,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-10-12 20:38:24,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2024-10-12 20:38:24,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 127 states have (on average 1.3070866141732282) internal successors, (166), 129 states have internal predecessors, (166), 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 20:38:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 272 transitions. [2024-10-12 20:38:24,847 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 272 transitions. Word has length 215 [2024-10-12 20:38:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:24,848 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 272 transitions. [2024-10-12 20:38:24,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 6 states have internal predecessors, (102), 2 states have call successors, (69), 6 states have call predecessors, (69), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-10-12 20:38:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 272 transitions. [2024-10-12 20:38:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-12 20:38:24,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:24,851 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 5, 5, 5, 5, 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, 1] [2024-10-12 20:38:24,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 20:38:25,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:38:25,053 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:25,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:25,054 INFO L85 PathProgramCache]: Analyzing trace with hash 830561207, now seen corresponding path program 2 times [2024-10-12 20:38:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:25,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306808062] [2024-10-12 20:38:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:25,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 20:38:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:38:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:38:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 20:38:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 20:38:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:38:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:38:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:38:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:38:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:38:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:38:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:38:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:38:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:38:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:38:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:38:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:38:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:38:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:38:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:38:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:26,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2024-10-12 20:38:26,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:26,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306808062] [2024-10-12 20:38:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306808062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:26,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:26,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:38:26,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185073337] [2024-10-12 20:38:26,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:26,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:38:26,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:26,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:38:26,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:38:26,313 INFO L87 Difference]: Start difference. First operand 189 states and 272 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-12 20:38:30,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:38:34,388 WARN L539 Checker$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 20:38:38,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:38:42,406 WARN L539 Checker$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 20:38:46,736 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 20:38:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:38:47,993 INFO L93 Difference]: Finished difference Result 507 states and 739 transitions. [2024-10-12 20:38:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:38:47,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 227 [2024-10-12 20:38:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:38:47,997 INFO L225 Difference]: With dead ends: 507 [2024-10-12 20:38:47,997 INFO L226 Difference]: Without dead ends: 355 [2024-10-12 20:38:47,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:38:47,999 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 207 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 135 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2024-10-12 20:38:47,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 628 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 579 Invalid, 5 Unknown, 0 Unchecked, 21.3s Time] [2024-10-12 20:38:48,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-10-12 20:38:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 345. [2024-10-12 20:38:48,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 224 states have (on average 1.3080357142857142) internal successors, (293), 229 states have internal predecessors, (293), 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 20:38:48,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 506 transitions. [2024-10-12 20:38:48,073 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 506 transitions. Word has length 227 [2024-10-12 20:38:48,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:38:48,074 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 506 transitions. [2024-10-12 20:38:48,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-12 20:38:48,074 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 506 transitions. [2024-10-12 20:38:48,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-12 20:38:48,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:38:48,079 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 5, 5, 5, 5, 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, 1] [2024-10-12 20:38:48,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:38:48,079 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:38:48,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:38:48,080 INFO L85 PathProgramCache]: Analyzing trace with hash 789221143, now seen corresponding path program 1 times [2024-10-12 20:38:48,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:38:48,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324494175] [2024-10-12 20:38:48,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:38:48,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:38:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-12 20:38:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:38:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:38:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:38:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 20:38:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 20:38:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:38:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:48,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:38:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:38:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:38:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:38:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:38:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:38:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:38:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:38:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:38:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:38:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:38:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:38:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:38:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:38:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:38:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:38:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:38:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:38:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:38:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:38:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:38:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:38:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:38:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1319 trivial. 0 not checked. [2024-10-12 20:38:49,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:38:49,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324494175] [2024-10-12 20:38:49,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324494175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:38:49,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:38:49,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:38:49,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824438042] [2024-10-12 20:38:49,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:38:49,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 20:38:49,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:38:49,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 20:38:49,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 20:38:49,070 INFO L87 Difference]: Start difference. First operand 345 states and 506 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-12 20:38:52,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:38:56,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:00,969 WARN L539 Checker$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 20:39:04,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:08,985 WARN L539 Checker$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 20:39:10,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:10,388 INFO L93 Difference]: Finished difference Result 631 states and 911 transitions. [2024-10-12 20:39:10,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 20:39:10,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 227 [2024-10-12 20:39:10,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:10,392 INFO L225 Difference]: With dead ends: 631 [2024-10-12 20:39:10,392 INFO L226 Difference]: Without dead ends: 316 [2024-10-12 20:39:10,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-10-12 20:39:10,394 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 221 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 173 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:10,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 637 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 580 Invalid, 4 Unknown, 0 Unchecked, 21.0s Time] [2024-10-12 20:39:10,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-10-12 20:39:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 308. [2024-10-12 20:39:10,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 200 states have (on average 1.26) internal successors, (252), 204 states have internal predecessors, (252), 85 states have call successors, (85), 18 states have call predecessors, (85), 22 states have return successors, (99), 85 states have call predecessors, (99), 85 states have call successors, (99) [2024-10-12 20:39:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 436 transitions. [2024-10-12 20:39:10,429 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 436 transitions. Word has length 227 [2024-10-12 20:39:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:10,430 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 436 transitions. [2024-10-12 20:39:10,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-12 20:39:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 436 transitions. [2024-10-12 20:39:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-12 20:39:10,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:10,434 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 5, 5, 5, 5, 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, 1] [2024-10-12 20:39:10,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:39:10,434 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:10,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:10,435 INFO L85 PathProgramCache]: Analyzing trace with hash -920679817, now seen corresponding path program 1 times [2024-10-12 20:39:10,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:10,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331319313] [2024-10-12 20:39:10,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:10,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 20:39:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:39:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:39:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:39:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 20:39:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 20:39:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:39:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:39:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:39:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:39:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:39:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:39:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:39:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:39:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:39:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:39:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:39:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:39:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:39:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:39:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:39:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:39:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:39:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:39:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:39:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:39:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:39:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:39:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2024-10-12 20:39:11,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:11,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331319313] [2024-10-12 20:39:11,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331319313] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:11,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943085425] [2024-10-12 20:39:11,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:11,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:11,595 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 20:39:11,596 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 20:39:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:12,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-12 20:39:12,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:12,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2024-10-12 20:39:12,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 20:39:12,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943085425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:39:12,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 20:39:12,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2024-10-12 20:39:12,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025761987] [2024-10-12 20:39:12,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:39:12,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 20:39:12,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 20:39:12,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-10-12 20:39:12,468 INFO L87 Difference]: Start difference. First operand 308 states and 436 transitions. Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-12 20:39:13,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:13,385 INFO L93 Difference]: Finished difference Result 808 states and 1141 transitions. [2024-10-12 20:39:13,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 20:39:13,386 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 227 [2024-10-12 20:39:13,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:13,392 INFO L225 Difference]: With dead ends: 808 [2024-10-12 20:39:13,393 INFO L226 Difference]: Without dead ends: 516 [2024-10-12 20:39:13,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-10-12 20:39:13,396 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 245 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:13,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 465 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 20:39:13,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-12 20:39:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 503. [2024-10-12 20:39:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 320 states have (on average 1.18125) internal successors, (378), 322 states have internal predecessors, (378), 142 states have call successors, (142), 31 states have call predecessors, (142), 40 states have return successors, (174), 149 states have call predecessors, (174), 142 states have call successors, (174) [2024-10-12 20:39:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 694 transitions. [2024-10-12 20:39:13,462 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 694 transitions. Word has length 227 [2024-10-12 20:39:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:13,463 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 694 transitions. [2024-10-12 20:39:13,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-10-12 20:39:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 694 transitions. [2024-10-12 20:39:13,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-12 20:39:13,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:13,467 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 5, 5, 5, 5, 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, 1] [2024-10-12 20:39:13,491 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 20:39:13,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:13,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:13,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:13,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1588884217, now seen corresponding path program 1 times [2024-10-12 20:39:13,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:13,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153256697] [2024-10-12 20:39:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:13,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 20:39:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 20:39:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-12 20:39:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-12 20:39:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-12 20:39:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 20:39:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 20:39:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 20:39:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 20:39:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-12 20:39:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-12 20:39:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-12 20:39:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-12 20:39:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-12 20:39:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-12 20:39:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-12 20:39:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-12 20:39:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-12 20:39:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-12 20:39:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-12 20:39:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-12 20:39:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-12 20:39:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-12 20:39:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-12 20:39:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2024-10-12 20:39:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-12 20:39:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-12 20:39:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-12 20:39:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-12 20:39:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:14,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1316 trivial. 0 not checked. [2024-10-12 20:39:14,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:39:14,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153256697] [2024-10-12 20:39:14,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153256697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 20:39:14,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104746293] [2024-10-12 20:39:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:14,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 20:39:14,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:39:14,781 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 20:39:14,783 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 20:39:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:39:15,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 1753 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-12 20:39:15,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 20:39:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 400 proven. 4 refuted. 0 times theorem prover too weak. 915 trivial. 0 not checked. [2024-10-12 20:39:15,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 20:39:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1319 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2024-10-12 20:39:16,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104746293] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 20:39:16,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 20:39:16,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-10-12 20:39:16,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673847378] [2024-10-12 20:39:16,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 20:39:16,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-12 20:39:16,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:39:16,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-12 20:39:16,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-12 20:39:16,013 INFO L87 Difference]: Start difference. First operand 503 states and 694 transitions. Second operand has 16 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 9 states have call successors, (63), 8 states have call predecessors, (63), 7 states have return successors, (61), 7 states have call predecessors, (61), 9 states have call successors, (61) [2024-10-12 20:39:20,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:24,129 WARN L539 Checker$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 20:39:28,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-12 20:39:32,148 WARN L539 Checker$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 20:39:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:39:33,867 INFO L93 Difference]: Finished difference Result 1010 states and 1422 transitions. [2024-10-12 20:39:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-12 20:39:33,868 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 9 states have call successors, (63), 8 states have call predecessors, (63), 7 states have return successors, (61), 7 states have call predecessors, (61), 9 states have call successors, (61) Word has length 227 [2024-10-12 20:39:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:39:33,872 INFO L225 Difference]: With dead ends: 1010 [2024-10-12 20:39:33,872 INFO L226 Difference]: Without dead ends: 546 [2024-10-12 20:39:33,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 521 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 20:39:33,875 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 261 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 141 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:39:33,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 689 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 813 Invalid, 4 Unknown, 0 Unchecked, 17.2s Time] [2024-10-12 20:39:33,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-10-12 20:39:33,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 525. [2024-10-12 20:39:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 343 states have (on average 1.2215743440233235) internal successors, (419), 343 states have internal predecessors, (419), 126 states have call successors, (126), 44 states have call predecessors, (126), 55 states have return successors, (180), 137 states have call predecessors, (180), 126 states have call successors, (180) [2024-10-12 20:39:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 725 transitions. [2024-10-12 20:39:33,935 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 725 transitions. Word has length 227 [2024-10-12 20:39:33,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:39:33,935 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 725 transitions. [2024-10-12 20:39:33,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.0) internal successors, (96), 12 states have internal predecessors, (96), 9 states have call successors, (63), 8 states have call predecessors, (63), 7 states have return successors, (61), 7 states have call predecessors, (61), 9 states have call successors, (61) [2024-10-12 20:39:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 725 transitions. [2024-10-12 20:39:33,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-10-12 20:39:33,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:39:33,942 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 9, 5, 5, 5, 5, 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, 1] [2024-10-12 20:39:33,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-12 20:39:34,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-12 20:39:34,143 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:39:34,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:39:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1204573957, now seen corresponding path program 1 times [2024-10-12 20:39:34,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:39:34,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875297682] [2024-10-12 20:39:34,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:39:34,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:39:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat