./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-46.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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.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 4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:18:35,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:18:35,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:18:35,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:18:35,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:18:35,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:18:35,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:18:35,364 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:18:35,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:18:35,366 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:18:35,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:18:35,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:18:35,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:18:35,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:18:35,370 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:18:35,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:18:35,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:18:35,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:18:35,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:18:35,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:18:35,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:18:35,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:18:35,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:18:35,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:18:35,376 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:18:35,377 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:18:35,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:18:35,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:18:35,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:18:35,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:18:35,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:18:35,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:18:35,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:18:35,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:18:35,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:18:35,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:18:35,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:18:35,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:18:35,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:18:35,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:18:35,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:18:35,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:18:35,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a633b68302485b97355fcc8c9ab86b75c4bb68dbf6f93417fd79b2d2487527c [2024-10-13 06:18:35,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:18:35,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:18:35,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:18:35,690 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:18:35,691 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:18:35,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2024-10-13 06:18:37,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:18:37,509 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:18:37,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i [2024-10-13 06:18:37,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81b491580/e0ed13f16a114b9a94daf02ea7305788/FLAG48d3da975 [2024-10-13 06:18:37,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81b491580/e0ed13f16a114b9a94daf02ea7305788 [2024-10-13 06:18:37,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:18:37,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:18:37,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:18:37,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:18:37,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:18:37,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:18:37" (1/1) ... [2024-10-13 06:18:37,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5118417c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:37, skipping insertion in model container [2024-10-13 06:18:37,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:18:37" (1/1) ... [2024-10-13 06:18:37,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:18:38,089 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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i[916,929] [2024-10-13 06:18:38,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:18:38,174 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:18:38,184 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/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-46.i[916,929] [2024-10-13 06:18:38,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:18:38,227 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:18:38,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38 WrapperNode [2024-10-13 06:18:38,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:18:38,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:18:38,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:18:38,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:18:38,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,324 INFO L138 Inliner]: procedures = 29, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427 [2024-10-13 06:18:38,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:18:38,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:18:38,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:18:38,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:18:38,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,363 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,396 INFO L175 MemorySlicer]: Split 101 memory accesses to 12 slices as follows [2, 12, 8, 17, 8, 8, 3, 6, 6, 8, 17, 6]. 17 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 16 writes are split as follows [0, 5, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1]. [2024-10-13 06:18:38,400 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:18:38,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:18:38,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:18:38,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:18:38,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (1/1) ... [2024-10-13 06:18:38,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:18:38,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:18:38,504 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) [2024-10-13 06:18:38,510 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 [2024-10-13 06:18:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:18:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-13 06:18:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-13 06:18:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-13 06:18:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-13 06:18:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-13 06:18:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-13 06:18:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:18:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-13 06:18:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-13 06:18:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-13 06:18:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-13 06:18:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-13 06:18:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-13 06:18:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-13 06:18:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-13 06:18:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 06:18:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-13 06:18:38,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-13 06:18:38,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:18:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:18:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:18:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 06:18:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 06:18:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-13 06:18:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-13 06:18:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-13 06:18:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-13 06:18:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-13 06:18:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:18:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:18:38,797 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:18:38,799 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:18:39,390 INFO L? ?]: Removed 100 outVars from TransFormulas that were not future-live. [2024-10-13 06:18:39,390 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:18:39,428 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:18:39,428 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:18:39,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:18:39 BoogieIcfgContainer [2024-10-13 06:18:39,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:18:39,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:18:39,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:18:39,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:18:39,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:18:37" (1/3) ... [2024-10-13 06:18:39,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37de23d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:18:39, skipping insertion in model container [2024-10-13 06:18:39,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:18:38" (2/3) ... [2024-10-13 06:18:39,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37de23d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:18:39, skipping insertion in model container [2024-10-13 06:18:39,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:18:39" (3/3) ... [2024-10-13 06:18:39,440 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-46.i [2024-10-13 06:18:39,455 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:18:39,455 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:18:39,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:18:39,534 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;@1621375, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:18:39,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:18:39,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 78 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 06:18:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-13 06:18:39,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:18:39,555 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:18:39,556 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:18:39,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:18:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash -152940133, now seen corresponding path program 1 times [2024-10-13 06:18:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:18:39,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114548876] [2024-10-13 06:18:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:18:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:18:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:39,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 06:18:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:39,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 06:18:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:39,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:18:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:39,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 06:18:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:39,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:18:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:18:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:18:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:18:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:18:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:18:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:18:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:18:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:18:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:18:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:40,091 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:18:40,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:18:40,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114548876] [2024-10-13 06:18:40,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114548876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:18:40,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:18:40,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:18:40,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194470065] [2024-10-13 06:18:40,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:18:40,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:18:40,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:18:40,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:18:40,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:18:40,137 INFO L87 Difference]: Start difference. First operand has 94 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 78 states have internal predecessors, (112), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:18:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:18:40,203 INFO L93 Difference]: Finished difference Result 185 states and 292 transitions. [2024-10-13 06:18:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:18:40,214 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2024-10-13 06:18:40,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:18:40,230 INFO L225 Difference]: With dead ends: 185 [2024-10-13 06:18:40,230 INFO L226 Difference]: Without dead ends: 92 [2024-10-13 06:18:40,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:18:40,242 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:18:40,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:18:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-13 06:18:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-13 06:18:40,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 76 states have internal predecessors, (107), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 06:18:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 135 transitions. [2024-10-13 06:18:40,320 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 135 transitions. Word has length 111 [2024-10-13 06:18:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:18:40,321 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 135 transitions. [2024-10-13 06:18:40,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-13 06:18:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 135 transitions. [2024-10-13 06:18:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-13 06:18:40,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:18:40,330 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:18:40,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:18:40,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:18:40,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:18:40,332 INFO L85 PathProgramCache]: Analyzing trace with hash -166577793, now seen corresponding path program 1 times [2024-10-13 06:18:40,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:18:40,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731982073] [2024-10-13 06:18:40,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:18:40,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:18:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 06:18:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 06:18:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:18:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 06:18:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:18:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:18:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:18:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:18:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:18:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:18:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:18:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:18:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:18:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:18:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:18:41,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:18:41,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731982073] [2024-10-13 06:18:41,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731982073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:18:41,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:18:41,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:18:41,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004593079] [2024-10-13 06:18:41,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:18:41,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:18:41,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:18:41,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:18:41,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:18:41,613 INFO L87 Difference]: Start difference. First operand 92 states and 135 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:18:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:18:42,115 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2024-10-13 06:18:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:18:42,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-13 06:18:42,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:18:42,123 INFO L225 Difference]: With dead ends: 335 [2024-10-13 06:18:42,123 INFO L226 Difference]: Without dead ends: 244 [2024-10-13 06:18:42,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:18:42,128 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 263 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:18:42,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1016 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:18:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-13 06:18:42,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 239. [2024-10-13 06:18:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 206 states have (on average 1.4320388349514563) internal successors, (295), 207 states have internal predecessors, (295), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-13 06:18:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 353 transitions. [2024-10-13 06:18:42,167 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 353 transitions. Word has length 111 [2024-10-13 06:18:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:18:42,169 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 353 transitions. [2024-10-13 06:18:42,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:18:42,170 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 353 transitions. [2024-10-13 06:18:42,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-13 06:18:42,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:18:42,172 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:18:42,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:18:42,173 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:18:42,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:18:42,173 INFO L85 PathProgramCache]: Analyzing trace with hash 91587645, now seen corresponding path program 1 times [2024-10-13 06:18:42,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:18:42,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661883305] [2024-10-13 06:18:42,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:18:42,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:18:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-13 06:18:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-13 06:18:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:18:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-13 06:18:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 06:18:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:18:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 06:18:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 06:18:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:18:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 06:18:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 06:18:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-13 06:18:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-13 06:18:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-13 06:18:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-13 06:18:42,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:18:42,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661883305] [2024-10-13 06:18:42,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661883305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:18:42,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:18:42,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:18:42,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451853158] [2024-10-13 06:18:42,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:18:42,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:18:42,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:18:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:18:42,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:18:42,809 INFO L87 Difference]: Start difference. First operand 239 states and 353 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:18:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:18:42,928 INFO L93 Difference]: Finished difference Result 721 states and 1066 transitions. [2024-10-13 06:18:42,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:18:42,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2024-10-13 06:18:42,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:18:42,937 INFO L225 Difference]: With dead ends: 721 [2024-10-13 06:18:42,939 INFO L226 Difference]: Without dead ends: 483 [2024-10-13 06:18:42,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:18:42,943 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 124 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:18:42,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 548 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:18:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-10-13 06:18:42,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 275. [2024-10-13 06:18:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 242 states have (on average 1.4256198347107438) internal successors, (345), 243 states have internal predecessors, (345), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-13 06:18:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 403 transitions. [2024-10-13 06:18:43,003 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 403 transitions. Word has length 111 [2024-10-13 06:18:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:18:43,004 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 403 transitions. [2024-10-13 06:18:43,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-13 06:18:43,004 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 403 transitions. [2024-10-13 06:18:43,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-13 06:18:43,006 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:18:43,006 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:18:43,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:18:43,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:18:43,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:18:43,007 INFO L85 PathProgramCache]: Analyzing trace with hash 360053170, now seen corresponding path program 1 times [2024-10-13 06:18:43,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:18:43,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396346585] [2024-10-13 06:18:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:18:43,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:18:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-13 06:18:43,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759008712] [2024-10-13 06:18:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:18:43,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:18:43,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:18:43,147 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) [2024-10-13 06:18:43,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 06:18:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:18:43,413 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-13 06:18:43,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:18:44,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-13 06:18:44,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 45 [2024-10-13 06:19:19,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 48 [2024-10-13 06:19:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 48 proven. 24 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-10-13 06:19:29,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:19:43,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 68 [2024-10-13 06:19:43,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:19:43,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396346585] [2024-10-13 06:19:43,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-13 06:19:43,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759008712] [2024-10-13 06:19:43,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759008712] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:19:43,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-13 06:19:43,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-10-13 06:19:43,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618788525] [2024-10-13 06:19:43,955 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-13 06:19:43,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:19:43,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:19:43,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:19:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=330, Unknown=16, NotChecked=0, Total=420 [2024-10-13 06:19:43,957 INFO L87 Difference]: Start difference. First operand 275 states and 403 transitions. Second operand has 14 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-10-13 06:19:48,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-13 06:20:00,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-13 06:20:05,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-13 06:20:10,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-13 06:20:14,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]