./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/image_filter.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/image_filter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7739edac33edee82d3c388da137105adbe48f8f59b0d45074d101ea06edef10e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:26:28,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:26:28,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:26:28,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:26:28,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:26:28,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:26:28,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:26:28,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:26:28,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:26:28,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:26:28,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:26:28,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:26:28,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:26:28,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:26:28,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:26:28,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:26:28,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:26:28,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:26:28,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:26:28,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:26:28,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:26:28,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:26:28,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:26:28,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:26:28,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:26:28,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:26:28,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:26:28,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:26:28,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:26:28,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:26:28,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:26:28,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:26:28,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:26:28,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:26:28,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:26:28,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:26:28,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:26:28,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:26:28,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:26:28,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:26:28,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:26:28,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:26:28,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7739edac33edee82d3c388da137105adbe48f8f59b0d45074d101ea06edef10e [2024-11-18 11:26:28,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:26:28,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:26:28,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:26:28,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:26:28,568 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:26:28,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/image_filter.c [2024-11-18 11:26:29,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:26:30,056 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:26:30,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/image_filter.c [2024-11-18 11:26:30,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e8587b0/40ed8216e02c4e2d8f9abb05787aac0a/FLAGe9a02d222 [2024-11-18 11:26:30,079 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73e8587b0/40ed8216e02c4e2d8f9abb05787aac0a [2024-11-18 11:26:30,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:26:30,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:26:30,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:26:30,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:26:30,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:26:30,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd4640a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30, skipping insertion in model container [2024-11-18 11:26:30,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:26:30,278 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/float-benchs/image_filter.c[564,577] [2024-11-18 11:26:30,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:26:30,395 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:26:30,406 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/float-benchs/image_filter.c[564,577] [2024-11-18 11:26:30,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:26:30,470 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:26:30,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30 WrapperNode [2024-11-18 11:26:30,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:26:30,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:26:30,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:26:30,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:26:30,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,532 INFO L138 Inliner]: procedures = 21, calls = 695, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 568 [2024-11-18 11:26:30,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:26:30,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:26:30,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:26:30,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:26:30,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,552 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,588 INFO L175 MemorySlicer]: Split 428 memory accesses to 39 slices as follows [19, 23, 23, 22, 19, 19, 19, 19, 19, 3, 3, 3, 3, 19, 3, 3, 19, 3, 19, 19, 19, 19, 18, 17, 19, 19, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3]. 5 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 101 writes are split as follows [4, 6, 6, 6, 4, 4, 4, 4, 4, 1, 1, 1, 1, 4, 1, 1, 4, 1, 4, 4, 4, 4, 4, 4, 4, 4, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-18 11:26:30,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,592 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:26:30,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:26:30,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:26:30,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:26:30,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (1/1) ... [2024-11-18 11:26:30,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:26:30,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:26:30,701 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) [2024-11-18 11:26:30,704 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 [2024-11-18 11:26:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:26:30,746 INFO L130 BoogieDeclarations]: Found specification of procedure sobel [2024-11-18 11:26:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sobel [2024-11-18 11:26:30,747 INFO L130 BoogieDeclarations]: Found specification of procedure blur [2024-11-18 11:26:30,747 INFO L138 BoogieDeclarations]: Found implementation of procedure blur [2024-11-18 11:26:30,748 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 11:26:30,748 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 11:26:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:26:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 11:26:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 11:26:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 11:26:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 11:26:30,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 11:26:30,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 11:26:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 11:26:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 11:26:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 11:26:30,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-18 11:26:30,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2024-11-18 11:26:30,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#32 [2024-11-18 11:26:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#33 [2024-11-18 11:26:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#34 [2024-11-18 11:26:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#35 [2024-11-18 11:26:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#36 [2024-11-18 11:26:30,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#37 [2024-11-18 11:26:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#38 [2024-11-18 11:26:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:26:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-18 11:26:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-18 11:26:30,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-18 11:26:30,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#17 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#18 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#19 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#20 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#21 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#22 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#23 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#24 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#25 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#26 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#27 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#28 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#29 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#30 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#31 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#32 [2024-11-18 11:26:30,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#33 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#34 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#35 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#36 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#37 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#38 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure filter [2024-11-18 11:26:30,758 INFO L138 BoogieDeclarations]: Found implementation of procedure filter [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-18 11:26:30,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-18 11:26:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-18 11:26:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-18 11:26:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-18 11:26:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-18 11:26:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-18 11:26:30,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#17 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#18 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#19 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#20 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#21 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#22 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#23 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#24 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#25 [2024-11-18 11:26:30,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#26 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#27 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#28 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#29 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#30 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#31 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#32 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#33 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#34 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#35 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#36 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#37 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#38 [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:26:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-18 11:26:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure sobelitereen [2024-11-18 11:26:30,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sobelitereen [2024-11-18 11:26:30,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:26:30,977 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:26:30,979 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:26:32,304 INFO L? ?]: Removed 171 outVars from TransFormulas that were not future-live. [2024-11-18 11:26:32,304 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:26:32,322 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:26:32,324 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 11:26:32,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:26:32 BoogieIcfgContainer [2024-11-18 11:26:32,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:26:32,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:26:32,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:26:32,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:26:32,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:26:30" (1/3) ... [2024-11-18 11:26:32,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3a19d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:26:32, skipping insertion in model container [2024-11-18 11:26:32,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:26:30" (2/3) ... [2024-11-18 11:26:32,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3a19d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:26:32, skipping insertion in model container [2024-11-18 11:26:32,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:26:32" (3/3) ... [2024-11-18 11:26:32,339 INFO L112 eAbstractionObserver]: Analyzing ICFG image_filter.c [2024-11-18 11:26:32,357 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:26:32,357 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:26:32,429 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:26:32,437 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;@ad73191, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:26:32,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:26:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 114 states have (on average 1.236842105263158) internal successors, (141), 115 states have internal predecessors, (141), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-18 11:26:32,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1619 [2024-11-18 11:26:32,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:26:32,519 INFO L215 NwaCegarLoop]: trace histogram [266, 266, 40, 40, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:26:32,520 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:26:32,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:26:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash 39119658, now seen corresponding path program 1 times [2024-11-18 11:26:32,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:26:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731522830] [2024-11-18 11:26:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:26:32,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:26:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:26:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 111861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111861 trivial. 0 not checked. [2024-11-18 11:26:35,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:26:35,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731522830] [2024-11-18 11:26:35,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731522830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:26:35,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:26:35,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:26:35,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201680843] [2024-11-18 11:26:35,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:26:35,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:26:35,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:26:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:26:35,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:26:35,892 INFO L87 Difference]: Start difference. First operand has 194 states, 114 states have (on average 1.236842105263158) internal successors, (141), 115 states have internal predecessors, (141), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-18 11:26:35,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:26:35,946 INFO L93 Difference]: Finished difference Result 379 states and 579 transitions. [2024-11-18 11:26:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:26:35,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 1618 [2024-11-18 11:26:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:26:35,972 INFO L225 Difference]: With dead ends: 379 [2024-11-18 11:26:35,972 INFO L226 Difference]: Without dead ends: 190 [2024-11-18 11:26:35,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:26:35,983 INFO L432 NwaCegarLoop]: 282 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, 282 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 [2024-11-18 11:26:35,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 11:26:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-18 11:26:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-18 11:26:36,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 111 states have (on average 1.2162162162162162) internal successors, (135), 112 states have internal predecessors, (135), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-18 11:26:36,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 278 transitions. [2024-11-18 11:26:36,039 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 278 transitions. Word has length 1618 [2024-11-18 11:26:36,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:26:36,046 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 278 transitions. [2024-11-18 11:26:36,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-18 11:26:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 278 transitions. [2024-11-18 11:26:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1619 [2024-11-18 11:26:36,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:26:36,086 INFO L215 NwaCegarLoop]: trace histogram [266, 266, 40, 40, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:26:36,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:26:36,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:26:36,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:26:36,089 INFO L85 PathProgramCache]: Analyzing trace with hash -816186996, now seen corresponding path program 1 times [2024-11-18 11:26:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:26:36,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94668389] [2024-11-18 11:26:36,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:26:36,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:26:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:26:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 111861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111861 trivial. 0 not checked. [2024-11-18 11:26:39,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:26:39,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94668389] [2024-11-18 11:26:39,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94668389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:26:39,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:26:39,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 11:26:39,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645406417] [2024-11-18 11:26:39,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:26:39,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 11:26:39,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:26:39,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 11:26:39,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:26:39,506 INFO L87 Difference]: Start difference. First operand 190 states and 278 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-18 11:26:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:26:39,640 INFO L93 Difference]: Finished difference Result 265 states and 397 transitions. [2024-11-18 11:26:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 11:26:39,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 1618 [2024-11-18 11:26:39,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:26:39,650 INFO L225 Difference]: With dead ends: 265 [2024-11-18 11:26:39,650 INFO L226 Difference]: Without dead ends: 202 [2024-11-18 11:26:39,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 11:26:39,654 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 10 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 11:26:39,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 549 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 11:26:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-18 11:26:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191. [2024-11-18 11:26:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 113 states have internal predecessors, (136), 72 states have call successors, (72), 6 states have call predecessors, (72), 6 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-18 11:26:39,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 279 transitions. [2024-11-18 11:26:39,672 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 279 transitions. Word has length 1618 [2024-11-18 11:26:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:26:39,678 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 279 transitions. [2024-11-18 11:26:39,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2024-11-18 11:26:39,679 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 279 transitions. [2024-11-18 11:26:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2346 [2024-11-18 11:26:39,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:26:39,702 INFO L215 NwaCegarLoop]: trace histogram [380, 380, 60, 60, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:26:39,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:26:39,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:26:39,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:26:39,703 INFO L85 PathProgramCache]: Analyzing trace with hash 658981913, now seen corresponding path program 1 times [2024-11-18 11:26:39,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:26:39,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988809077] [2024-11-18 11:26:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:26:39,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:26:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:26:43,414 INFO L134 CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked. [2024-11-18 11:26:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:26:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988809077] [2024-11-18 11:26:43,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988809077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:26:43,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728133184] [2024-11-18 11:26:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:26:43,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:26:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:26:43,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:26:43,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 11:26:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:26:47,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 21504 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 11:26:47,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:26:48,112 INFO L134 CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked. [2024-11-18 11:26:48,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:26:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 229308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 229307 trivial. 0 not checked. [2024-11-18 11:26:51,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728133184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:26:51,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:26:51,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 11:26:51,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925186186] [2024-11-18 11:26:51,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:26:51,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 11:26:51,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:26:51,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 11:26:51,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:26:51,445 INFO L87 Difference]: Start difference. First operand 191 states and 279 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2024-11-18 11:26:51,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:26:51,958 INFO L93 Difference]: Finished difference Result 290 states and 438 transitions. [2024-11-18 11:26:51,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 11:26:51,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 2345 [2024-11-18 11:26:51,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:26:51,970 INFO L225 Difference]: With dead ends: 290 [2024-11-18 11:26:51,970 INFO L226 Difference]: Without dead ends: 227 [2024-11-18 11:26:51,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4692 GetRequests, 4687 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:26:51,972 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 38 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 11:26:51,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 823 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 11:26:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-18 11:26:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2024-11-18 11:26:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 136 states have (on average 1.2426470588235294) internal successors, (169), 137 states have internal predecessors, (169), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-18 11:26:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 336 transitions. [2024-11-18 11:26:51,990 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 336 transitions. Word has length 2345 [2024-11-18 11:26:51,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:26:51,993 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 336 transitions. [2024-11-18 11:26:51,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2024-11-18 11:26:51,993 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 336 transitions. [2024-11-18 11:26:52,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4527 [2024-11-18 11:26:52,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:26:52,206 INFO L215 NwaCegarLoop]: trace histogram [722, 722, 120, 120, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:26:52,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 11:26:52,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:26:52,407 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:26:52,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:26:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1781177268, now seen corresponding path program 2 times [2024-11-18 11:26:52,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:26:52,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479100858] [2024-11-18 11:26:52,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 11:26:52,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:26:55,373 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 11:26:55,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:27:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked. [2024-11-18 11:27:01,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:27:01,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479100858] [2024-11-18 11:27:01,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479100858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 11:27:01,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177922876] [2024-11-18 11:27:01,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 11:27:01,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 11:27:01,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:27:01,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 11:27:01,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 11:27:09,382 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 11:27:09,383 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 11:27:09,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 41172 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 11:27:09,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:27:09,890 INFO L134 CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked. [2024-11-18 11:27:09,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 11:27:15,038 INFO L134 CoverageAnalysis]: Checked inductivity of 832251 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 832175 trivial. 0 not checked. [2024-11-18 11:27:15,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177922876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 11:27:15,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 11:27:15,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-18 11:27:15,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677412253] [2024-11-18 11:27:15,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 11:27:15,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 11:27:15,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:27:15,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 11:27:15,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:27:15,046 INFO L87 Difference]: Start difference. First operand 227 states and 336 transitions. Second operand has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 11 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) [2024-11-18 11:27:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:27:15,730 INFO L93 Difference]: Finished difference Result 362 states and 555 transitions. [2024-11-18 11:27:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 11:27:15,734 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 11 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) Word has length 4526 [2024-11-18 11:27:15,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:27:15,748 INFO L225 Difference]: With dead ends: 362 [2024-11-18 11:27:15,748 INFO L226 Difference]: Without dead ends: 299 [2024-11-18 11:27:15,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9057 GetRequests, 9046 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:27:15,751 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 74 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 11:27:15,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1137 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 11:27:15,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-11-18 11:27:15,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-11-18 11:27:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 184 states have (on average 1.2771739130434783) internal successors, (235), 185 states have internal predecessors, (235), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-18 11:27:15,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 450 transitions. [2024-11-18 11:27:15,786 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 450 transitions. Word has length 4526 [2024-11-18 11:27:15,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:27:15,789 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 450 transitions. [2024-11-18 11:27:15,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.923076923076923) internal successors, (142), 13 states have internal predecessors, (142), 11 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 10 states have call predecessors, (85), 10 states have call successors, (85) [2024-11-18 11:27:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 450 transitions. [2024-11-18 11:27:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8889 [2024-11-18 11:27:16,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:27:16,198 INFO L215 NwaCegarLoop]: trace histogram [1406, 1406, 240, 240, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 30, 30, 30, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:27:16,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 11:27:16,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-18 11:27:16,399 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:27:16,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:27:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1257830508, now seen corresponding path program 3 times [2024-11-18 11:27:16,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:27:16,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887717978] [2024-11-18 11:27:16,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 11:27:16,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms