./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.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 b28c8175bc39dd1c459be6d9349fe3be895f115cd8cddc9719a89a6e0edbf727 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:51:45,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:51:45,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:51:45,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:51:45,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:51:45,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:51:45,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:51:45,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:51:45,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:51:45,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:51:45,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:51:45,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:51:45,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:51:45,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:51:45,920 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:51:45,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:51:45,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:51:45,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:51:45,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:51:45,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:51:45,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:51:45,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:51:45,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:51:45,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:51:45,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:51:45,924 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:51:45,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:51:45,929 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:51:45,929 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:51:45,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:51:45,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:51:45,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:51:45,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:51:45,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:51:45,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:51:45,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:51:45,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:51:45,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:51:45,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:51:45,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:51:45,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:51:45,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:51:45,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b28c8175bc39dd1c459be6d9349fe3be895f115cd8cddc9719a89a6e0edbf727 [2024-11-20 08:51:46,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:51:46,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:51:46,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:51:46,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:51:46,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:51:46,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i [2024-11-20 08:51:47,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:51:47,878 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:51:47,879 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i [2024-11-20 08:51:47,887 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5adf5203/0e0fe38648704113b38a93288bd68184/FLAGb5b8cbb95 [2024-11-20 08:51:47,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5adf5203/0e0fe38648704113b38a93288bd68184 [2024-11-20 08:51:47,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:51:47,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:51:47,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:51:47,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:51:47,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:51:47,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:51:47" (1/1) ... [2024-11-20 08:51:47,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f74deb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:47, skipping insertion in model container [2024-11-20 08:51:47,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:51:47" (1/1) ... [2024-11-20 08:51:47,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:51:48,096 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i[916,929] [2024-11-20 08:51:48,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:51:48,160 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:51:48,170 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-89.i[916,929] [2024-11-20 08:51:48,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:51:48,210 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:51:48,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48 WrapperNode [2024-11-20 08:51:48,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:51:48,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:51:48,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:51:48,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:51:48,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,274 INFO L138 Inliner]: procedures = 26, calls = 143, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 462 [2024-11-20 08:51:48,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:51:48,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:51:48,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:51:48,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:51:48,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,301 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,336 INFO L175 MemorySlicer]: Split 107 memory accesses to 13 slices as follows [2, 7, 13, 12, 6, 12, 9, 8, 12, 7, 5, 10, 4]. 12 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 15 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1]. [2024-11-20 08:51:48,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:51:48,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:51:48,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:51:48,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:51:48,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (1/1) ... [2024-11-20 08:51:48,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:51:48,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:51:48,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:51:48,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:51:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:51:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:51:48,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:51:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:51:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:51:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:51:48,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 08:51:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 08:51:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-20 08:51:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-20 08:51:48,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:51:48,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-20 08:51:48,496 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:51:48,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:51:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:51:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:51:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:51:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:51:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:51:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 08:51:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 08:51:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-20 08:51:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-20 08:51:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-20 08:51:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-20 08:51:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-20 08:51:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-20 08:51:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:51:48,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:51:48,655 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:51:48,657 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:51:49,145 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-20 08:51:49,145 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:51:49,162 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:51:49,162 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:51:49,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:51:49 BoogieIcfgContainer [2024-11-20 08:51:49,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:51:49,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:51:49,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:51:49,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:51:49,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:51:47" (1/3) ... [2024-11-20 08:51:49,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3965e979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:51:49, skipping insertion in model container [2024-11-20 08:51:49,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:51:48" (2/3) ... [2024-11-20 08:51:49,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3965e979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:51:49, skipping insertion in model container [2024-11-20 08:51:49,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:51:49" (3/3) ... [2024-11-20 08:51:49,193 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-89.i [2024-11-20 08:51:49,225 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:51:49,225 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:51:49,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:51:49,298 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;@1ad2701c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:51:49,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:51:49,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 08:51:49,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:49,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:49,318 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:49,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:49,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash 80080085, now seen corresponding path program 1 times [2024-11-20 08:51:49,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:49,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262608760] [2024-11-20 08:51:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:49,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:51:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:51:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:51:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:51:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:51:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:51:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:51:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:51:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:51:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:51:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:51:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:51:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:51:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:49,766 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 08:51:49,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:51:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262608760] [2024-11-20 08:51:49,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262608760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:51:49,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:51:49,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:51:49,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819212875] [2024-11-20 08:51:49,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:51:49,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:51:49,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:51:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:51:49,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:51:49,809 INFO L87 Difference]: Start difference. First operand has 102 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-20 08:51:49,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:51:49,851 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2024-11-20 08:51:49,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:51:49,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-20 08:51:49,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:51:49,863 INFO L225 Difference]: With dead ends: 197 [2024-11-20 08:51:49,863 INFO L226 Difference]: Without dead ends: 98 [2024-11-20 08:51:49,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:51:49,872 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:51:49,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:51:49,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-20 08:51:49,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-20 08:51:49,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 83 states have internal predecessors, (115), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 08:51:49,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2024-11-20 08:51:49,933 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 109 [2024-11-20 08:51:49,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:51:49,933 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2024-11-20 08:51:49,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-20 08:51:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2024-11-20 08:51:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:49,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:49,939 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:49,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:51:49,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:49,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:49,940 INFO L85 PathProgramCache]: Analyzing trace with hash 231956475, now seen corresponding path program 1 times [2024-11-20 08:51:49,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:49,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371647821] [2024-11-20 08:51:49,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:49,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:51:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:51:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:51:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:51:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:51:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:51:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:51:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:51:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:51:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:51:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:51:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:51:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:51:50,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 08:51:50,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:51:50,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371647821] [2024-11-20 08:51:50,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371647821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:51:50,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:51:50,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:51:50,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592017725] [2024-11-20 08:51:50,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:51:50,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:51:50,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:51:50,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:51:50,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:51:50,321 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:50,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:51:50,374 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2024-11-20 08:51:50,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:51:50,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-20 08:51:50,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:51:50,378 INFO L225 Difference]: With dead ends: 196 [2024-11-20 08:51:50,379 INFO L226 Difference]: Without dead ends: 101 [2024-11-20 08:51:50,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:51:50,382 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:51:50,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 403 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:51:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-20 08:51:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-20 08:51:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 85 states have internal predecessors, (117), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 08:51:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2024-11-20 08:51:50,402 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 109 [2024-11-20 08:51:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:51:50,404 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2024-11-20 08:51:50,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-11-20 08:51:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:50,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:50,407 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:50,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:51:50,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:50,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:50,408 INFO L85 PathProgramCache]: Analyzing trace with hash 912014845, now seen corresponding path program 1 times [2024-11-20 08:51:50,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:50,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131216776] [2024-11-20 08:51:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:50,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:51:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:51:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:51:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:51:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:51:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:51:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:51:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:51:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:51:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:51:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:51:50,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:51:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:51:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 08:51:50,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:51:50,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131216776] [2024-11-20 08:51:50,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131216776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:51:50,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:51:50,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:51:50,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425512375] [2024-11-20 08:51:50,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:51:50,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:51:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:51:50,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:51:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:51:50,692 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:51:50,739 INFO L93 Difference]: Finished difference Result 200 states and 287 transitions. [2024-11-20 08:51:50,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:51:50,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-20 08:51:50,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:51:50,745 INFO L225 Difference]: With dead ends: 200 [2024-11-20 08:51:50,745 INFO L226 Difference]: Without dead ends: 103 [2024-11-20 08:51:50,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:51:50,747 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:51:50,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 404 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:51:50,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-20 08:51:50,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2024-11-20 08:51:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 87 states have (on average 1.367816091954023) internal successors, (119), 87 states have internal predecessors, (119), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 08:51:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2024-11-20 08:51:50,756 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 109 [2024-11-20 08:51:50,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:51:50,757 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2024-11-20 08:51:50,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2024-11-20 08:51:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:50,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:50,759 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:50,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:51:50,760 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:50,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:50,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1607945089, now seen corresponding path program 1 times [2024-11-20 08:51:50,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:50,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652497848] [2024-11-20 08:51:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:50,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:51:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:51:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:51:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:51:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:51:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:51:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:51:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:51:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:51:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:51:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:51:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:51:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:51:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 08:51:50,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:51:50,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652497848] [2024-11-20 08:51:50,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652497848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:51:50,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:51:50,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:51:50,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977355187] [2024-11-20 08:51:50,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:51:50,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:51:50,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:51:50,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:51:50,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:51:50,965 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:50,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:51:50,999 INFO L93 Difference]: Finished difference Result 204 states and 291 transitions. [2024-11-20 08:51:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:51:51,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-20 08:51:51,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:51:51,004 INFO L225 Difference]: With dead ends: 204 [2024-11-20 08:51:51,004 INFO L226 Difference]: Without dead ends: 105 [2024-11-20 08:51:51,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:51:51,009 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:51:51,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 406 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:51:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-20 08:51:51,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2024-11-20 08:51:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 89 states have internal predecessors, (121), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 08:51:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2024-11-20 08:51:51,018 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 147 transitions. Word has length 109 [2024-11-20 08:51:51,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:51:51,018 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 147 transitions. [2024-11-20 08:51:51,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:51,019 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 147 transitions. [2024-11-20 08:51:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:51,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:51,021 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:51,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:51:51,021 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:51,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1606098047, now seen corresponding path program 1 times [2024-11-20 08:51:51,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:51,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215762917] [2024-11-20 08:51:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:51,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:51:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:51:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:51:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:51:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:51:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:51:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:51:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:51:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:51:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:51:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:51:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:51:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:51:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 08:51:52,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:51:52,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215762917] [2024-11-20 08:51:52,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215762917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:51:52,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:51:52,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:51:52,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756755748] [2024-11-20 08:51:52,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:51:52,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:51:52,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:51:52,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:51:52,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:51:52,352 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:52,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:51:52,706 INFO L93 Difference]: Finished difference Result 284 states and 401 transitions. [2024-11-20 08:51:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:51:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-20 08:51:52,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:51:52,709 INFO L225 Difference]: With dead ends: 284 [2024-11-20 08:51:52,709 INFO L226 Difference]: Without dead ends: 183 [2024-11-20 08:51:52,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:51:52,711 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 100 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:51:52,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 987 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:51:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-20 08:51:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2024-11-20 08:51:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 159 states have (on average 1.371069182389937) internal successors, (218), 160 states have internal predecessors, (218), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:51:52,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 254 transitions. [2024-11-20 08:51:52,728 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 254 transitions. Word has length 109 [2024-11-20 08:51:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:51:52,729 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 254 transitions. [2024-11-20 08:51:52,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 254 transitions. [2024-11-20 08:51:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:52,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:52,732 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:52,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:51:52,732 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:52,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1667800895, now seen corresponding path program 1 times [2024-11-20 08:51:52,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:52,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589990984] [2024-11-20 08:51:52,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:52,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:51:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:51:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:51:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:51:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:51:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:51:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:51:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:51:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:51:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:51:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:51:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:51:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:51:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:51:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-20 08:51:53,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:51:53,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589990984] [2024-11-20 08:51:53,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589990984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:51:53,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:51:53,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:51:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816127392] [2024-11-20 08:51:53,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:51:53,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:51:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:51:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:51:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:51:53,065 INFO L87 Difference]: Start difference. First operand 180 states and 254 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:53,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:51:53,146 INFO L93 Difference]: Finished difference Result 362 states and 508 transitions. [2024-11-20 08:51:53,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:51:53,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2024-11-20 08:51:53,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:51:53,150 INFO L225 Difference]: With dead ends: 362 [2024-11-20 08:51:53,150 INFO L226 Difference]: Without dead ends: 185 [2024-11-20 08:51:53,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:51:53,151 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 89 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:51:53,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 537 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:51:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-20 08:51:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2024-11-20 08:51:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 161 states have (on average 1.360248447204969) internal successors, (219), 162 states have internal predecessors, (219), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:51:53,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2024-11-20 08:51:53,164 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 109 [2024-11-20 08:51:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:51:53,165 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2024-11-20 08:51:53,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-20 08:51:53,165 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2024-11-20 08:51:53,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 08:51:53,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:51:53,167 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:51:53,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:51:53,170 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:51:53,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:51:53,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1927988566, now seen corresponding path program 1 times [2024-11-20 08:51:53,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:51:53,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648716324] [2024-11-20 08:51:53,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:51:53,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:51:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat