./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-64.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 32bbf5b6b15e8e45a78ed01aff570512bbe14911dc5894acdb61cde4404467f0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 18:15:01,505 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 18:15:01,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 18:15:01,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 18:15:01,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 18:15:01,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 18:15:01,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 18:15:01,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 18:15:01,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 18:15:01,655 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 18:15:01,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 18:15:01,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 18:15:01,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 18:15:01,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 18:15:01,658 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 18:15:01,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 18:15:01,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 18:15:01,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 18:15:01,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 18:15:01,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 18:15:01,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 18:15:01,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 18:15:01,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 18:15:01,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 18:15:01,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 18:15:01,665 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 18:15:01,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 18:15:01,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 18:15:01,666 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 18:15:01,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 18:15:01,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 18:15:01,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 18:15:01,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:15:01,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 18:15:01,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 18:15:01,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 18:15:01,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 18:15:01,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 18:15:01,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 18:15:01,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 18:15:01,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 18:15:01,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 18:15:01,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32bbf5b6b15e8e45a78ed01aff570512bbe14911dc5894acdb61cde4404467f0 [2024-11-16 18:15:01,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 18:15:01,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 18:15:01,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 18:15:01,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 18:15:01,964 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 18:15:01,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-64.i [2024-11-16 18:15:03,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 18:15:03,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 18:15:03,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-64.i [2024-11-16 18:15:03,664 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae3e13ce/1bc046ea1fe7406fa220c3032d8e74c9/FLAGfd1bd44c5 [2024-11-16 18:15:03,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae3e13ce/1bc046ea1fe7406fa220c3032d8e74c9 [2024-11-16 18:15:03,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 18:15:03,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 18:15:03,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 18:15:03,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 18:15:03,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 18:15:03,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:15:03" (1/1) ... [2024-11-16 18:15:03,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f06ad28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:03, skipping insertion in model container [2024-11-16 18:15:03,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:15:03" (1/1) ... [2024-11-16 18:15:03,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 18:15:03,920 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-64.i[916,929] [2024-11-16 18:15:04,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:15:04,040 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 18:15:04,050 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-64.i[916,929] [2024-11-16 18:15:04,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 18:15:04,115 INFO L204 MainTranslator]: Completed translation [2024-11-16 18:15:04,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04 WrapperNode [2024-11-16 18:15:04,116 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 18:15:04,117 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 18:15:04,117 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 18:15:04,117 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 18:15:04,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,185 INFO L138 Inliner]: procedures = 29, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 526 [2024-11-16 18:15:04,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 18:15:04,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 18:15:04,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 18:15:04,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 18:15:04,202 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,238 INFO L175 MemorySlicer]: Split 131 memory accesses to 8 slices as follows [2, 21, 25, 24, 3, 22, 27, 7]. 21 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 3, 2, 3, 1, 2, 3, 1]. The 18 writes are split as follows [0, 3, 3, 3, 1, 4, 3, 1]. [2024-11-16 18:15:04,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,263 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 18:15:04,291 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 18:15:04,292 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 18:15:04,292 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 18:15:04,293 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (1/1) ... [2024-11-16 18:15:04,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 18:15:04,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:15:04,333 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) [2024-11-16 18:15:04,340 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 [2024-11-16 18:15:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 18:15:04,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 18:15:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 18:15:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 18:15:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 18:15:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 18:15:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 18:15:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 18:15:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 18:15:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 18:15:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-16 18:15:04,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 18:15:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 18:15:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 18:15:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 18:15:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 18:15:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 18:15:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-16 18:15:04,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 18:15:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 18:15:04,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 18:15:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 18:15:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 18:15:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 18:15:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 18:15:04,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 18:15:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 18:15:04,575 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 18:15:04,576 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 18:15:05,048 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L114: havoc property_#t~mem92#1;havoc property_#t~ite106#1;havoc property_#t~mem96#1;havoc property_#t~mem93#1;havoc property_#t~ite95#1;havoc property_#t~mem94#1;havoc property_#t~ite105#1;havoc property_#t~mem97#1;havoc property_#t~mem98#1;havoc property_#t~mem99#1;havoc property_#t~ite102#1;havoc property_#t~mem101#1;havoc property_#t~mem100#1;havoc property_#t~mem104#1;havoc property_#t~mem103#1;havoc property_#t~mem107#1;havoc property_#t~mem108#1;havoc property_#t~ite113#1;havoc property_#t~mem112#1;havoc property_#t~mem109#1;havoc property_#t~mem110#1;havoc property_#t~short111#1;havoc property_#t~short114#1;havoc property_#t~mem115#1;havoc property_#t~ite125#1;havoc property_#t~mem119#1;havoc property_#t~mem118#1;havoc property_#t~mem116#1;havoc property_#t~mem117#1;havoc property_#t~short120#1;havoc property_#t~ite124#1;havoc property_#t~mem123#1;havoc property_#t~mem121#1;havoc property_#t~mem122#1;havoc property_#t~short126#1;havoc property_#t~mem129#1;havoc property_#t~mem127#1;havoc property_#t~mem128#1;havoc property_#t~bitwise130#1;havoc property_#t~mem131#1;havoc property_#t~ite140#1;havoc property_#t~mem132#1;havoc property_#t~ite137#1;havoc property_#t~mem134#1;havoc property_#t~mem133#1;havoc property_#t~mem136#1;havoc property_#t~mem135#1;havoc property_#t~mem139#1;havoc property_#t~mem138#1;havoc property_#t~short141#1; [2024-11-16 18:15:05,105 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-16 18:15:05,106 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 18:15:05,135 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 18:15:05,136 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 18:15:05,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:15:05 BoogieIcfgContainer [2024-11-16 18:15:05,136 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 18:15:05,156 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 18:15:05,156 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 18:15:05,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 18:15:05,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:15:03" (1/3) ... [2024-11-16 18:15:05,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b357ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:15:05, skipping insertion in model container [2024-11-16 18:15:05,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:15:04" (2/3) ... [2024-11-16 18:15:05,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b357ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:15:05, skipping insertion in model container [2024-11-16 18:15:05,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:15:05" (3/3) ... [2024-11-16 18:15:05,162 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-64.i [2024-11-16 18:15:05,189 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 18:15:05,189 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 18:15:05,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 18:15:05,281 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;@5ea64a82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 18:15:05,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 18:15:05,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 109 states have (on average 1.4220183486238531) internal successors, (155), 110 states have internal predecessors, (155), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:15:05,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 18:15:05,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:05,302 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:05,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:05,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash -642977261, now seen corresponding path program 1 times [2024-11-16 18:15:05,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:05,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5815052] [2024-11-16 18:15:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:05,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:15:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:15:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:15:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:15:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:15:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:15:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:15:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:15:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 18:15:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:15:05,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:05,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5815052] [2024-11-16 18:15:05,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5815052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:05,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:05,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 18:15:05,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616659802] [2024-11-16 18:15:05,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:05,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 18:15:05,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:05,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 18:15:05,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:15:05,803 INFO L87 Difference]: Start difference. First operand has 132 states, 109 states have (on average 1.4220183486238531) internal successors, (155), 110 states have internal predecessors, (155), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:15:05,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:05,852 INFO L93 Difference]: Finished difference Result 256 states and 403 transitions. [2024-11-16 18:15:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 18:15:05,855 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 161 [2024-11-16 18:15:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:05,863 INFO L225 Difference]: With dead ends: 256 [2024-11-16 18:15:05,863 INFO L226 Difference]: Without dead ends: 127 [2024-11-16 18:15:05,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 18:15:05,872 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:05,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-16 18:15:05,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-16 18:15:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.4) internal successors, (147), 105 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:15:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 187 transitions. [2024-11-16 18:15:05,931 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 187 transitions. Word has length 161 [2024-11-16 18:15:05,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:05,932 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 187 transitions. [2024-11-16 18:15:05,933 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, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-16 18:15:05,933 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 187 transitions. [2024-11-16 18:15:05,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-16 18:15:05,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:05,937 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:05,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 18:15:05,937 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:05,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:05,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2091541405, now seen corresponding path program 1 times [2024-11-16 18:15:05,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:05,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416987106] [2024-11-16 18:15:05,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:05,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:15:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:15:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:15:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:15:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:15:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:15:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:15:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:15:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 18:15:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:15:06,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:06,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416987106] [2024-11-16 18:15:06,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416987106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:06,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:06,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 18:15:06,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209879328] [2024-11-16 18:15:06,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:06,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 18:15:06,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 18:15:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:06,480 INFO L87 Difference]: Start difference. First operand 127 states and 187 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:15:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:06,545 INFO L93 Difference]: Finished difference Result 253 states and 374 transitions. [2024-11-16 18:15:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 18:15:06,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-16 18:15:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:06,551 INFO L225 Difference]: With dead ends: 253 [2024-11-16 18:15:06,551 INFO L226 Difference]: Without dead ends: 129 [2024-11-16 18:15:06,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 18:15:06,555 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:06,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-16 18:15:06,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-16 18:15:06,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 107 states have internal predecessors, (149), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:15:06,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 189 transitions. [2024-11-16 18:15:06,572 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 189 transitions. Word has length 161 [2024-11-16 18:15:06,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:06,573 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 189 transitions. [2024-11-16 18:15:06,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:15:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 189 transitions. [2024-11-16 18:15:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 18:15:06,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:06,577 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:06,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 18:15:06,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:06,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:06,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1516373367, now seen corresponding path program 1 times [2024-11-16 18:15:06,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:06,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117315172] [2024-11-16 18:15:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:06,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:15:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:15:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:15:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:15:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:15:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:15:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:15:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:15:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 18:15:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:15:06,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:06,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117315172] [2024-11-16 18:15:06,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117315172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:06,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:06,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 18:15:06,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127878987] [2024-11-16 18:15:06,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:06,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 18:15:06,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:06,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 18:15:06,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:06,947 INFO L87 Difference]: Start difference. First operand 129 states and 189 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:15:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:07,008 INFO L93 Difference]: Finished difference Result 258 states and 379 transitions. [2024-11-16 18:15:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 18:15:07,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-16 18:15:07,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:07,011 INFO L225 Difference]: With dead ends: 258 [2024-11-16 18:15:07,012 INFO L226 Difference]: Without dead ends: 132 [2024-11-16 18:15:07,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 18:15:07,014 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:07,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 711 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 18:15:07,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-16 18:15:07,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-16 18:15:07,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 110 states have (on average 1.3818181818181818) internal successors, (152), 110 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:15:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2024-11-16 18:15:07,024 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 163 [2024-11-16 18:15:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:07,025 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2024-11-16 18:15:07,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:15:07,025 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2024-11-16 18:15:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-16 18:15:07,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:07,028 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:07,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 18:15:07,028 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:07,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:07,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1352620120, now seen corresponding path program 1 times [2024-11-16 18:15:07,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:07,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245935097] [2024-11-16 18:15:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:07,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:15:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:15:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:15:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:15:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:15:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:15:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:15:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:15:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 18:15:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-16 18:15:07,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:07,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245935097] [2024-11-16 18:15:07,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245935097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 18:15:07,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 18:15:07,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 18:15:07,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445280026] [2024-11-16 18:15:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 18:15:07,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 18:15:07,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 18:15:07,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 18:15:07,848 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:15:08,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:08,367 INFO L93 Difference]: Finished difference Result 496 states and 718 transitions. [2024-11-16 18:15:08,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 18:15:08,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-16 18:15:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:08,371 INFO L225 Difference]: With dead ends: 496 [2024-11-16 18:15:08,373 INFO L226 Difference]: Without dead ends: 367 [2024-11-16 18:15:08,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-16 18:15:08,376 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 394 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:08,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 852 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 18:15:08,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-16 18:15:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 149. [2024-11-16 18:15:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 127 states have internal predecessors, (178), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-16 18:15:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 218 transitions. [2024-11-16 18:15:08,402 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 218 transitions. Word has length 164 [2024-11-16 18:15:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:08,403 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 218 transitions. [2024-11-16 18:15:08,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-16 18:15:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 218 transitions. [2024-11-16 18:15:08,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-16 18:15:08,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:08,410 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:08,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 18:15:08,410 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:08,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:08,410 INFO L85 PathProgramCache]: Analyzing trace with hash 742819271, now seen corresponding path program 1 times [2024-11-16 18:15:08,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:08,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577807110] [2024-11-16 18:15:08,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:08,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 18:15:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 18:15:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-16 18:15:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 18:15:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 18:15:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 18:15:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 18:15:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 18:15:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 18:15:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-16 18:15:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 18:15:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 18:15:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-16 18:15:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-16 18:15:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 18:15:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-16 18:15:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-16 18:15:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-16 18:15:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 18:15:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-16 18:15:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:15:09,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 18:15:09,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577807110] [2024-11-16 18:15:09,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577807110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 18:15:09,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145782961] [2024-11-16 18:15:09,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:09,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:09,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 18:15:09,457 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) [2024-11-16 18:15:09,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 18:15:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 18:15:09,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 18:15:09,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 18:15:09,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-16 18:15:09,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 18:15:09,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2024-11-16 18:15:10,870 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 19 proven. 57 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-16 18:15:10,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 18:15:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-16 18:15:12,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145782961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 18:15:12,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 18:15:12,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 12] total 27 [2024-11-16 18:15:12,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199806655] [2024-11-16 18:15:12,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 18:15:12,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 18:15:12,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 18:15:12,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 18:15:12,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2024-11-16 18:15:12,267 INFO L87 Difference]: Start difference. First operand 149 states and 218 transitions. Second operand has 27 states, 24 states have (on average 8.083333333333334) internal successors, (194), 27 states have internal predecessors, (194), 7 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 7 states have call successors, (60) [2024-11-16 18:15:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 18:15:14,664 INFO L93 Difference]: Finished difference Result 653 states and 942 transitions. [2024-11-16 18:15:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-16 18:15:14,665 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 8.083333333333334) internal successors, (194), 27 states have internal predecessors, (194), 7 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 7 states have call successors, (60) Word has length 165 [2024-11-16 18:15:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 18:15:14,671 INFO L225 Difference]: With dead ends: 653 [2024-11-16 18:15:14,671 INFO L226 Difference]: Without dead ends: 507 [2024-11-16 18:15:14,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=567, Invalid=3215, Unknown=0, NotChecked=0, Total=3782 [2024-11-16 18:15:14,676 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 706 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 1742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 18:15:14,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2386 Invalid, 1742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 18:15:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-16 18:15:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 370. [2024-11-16 18:15:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 303 states have (on average 1.3696369636963697) internal successors, (415), 303 states have internal predecessors, (415), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-16 18:15:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 535 transitions. [2024-11-16 18:15:14,727 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 535 transitions. Word has length 165 [2024-11-16 18:15:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 18:15:14,728 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 535 transitions. [2024-11-16 18:15:14,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 8.083333333333334) internal successors, (194), 27 states have internal predecessors, (194), 7 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 7 states have call successors, (60) [2024-11-16 18:15:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 535 transitions. [2024-11-16 18:15:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 18:15:14,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 18:15:14,730 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 18:15:14,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 18:15:14,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 18:15:14,931 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 18:15:14,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 18:15:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1434612059, now seen corresponding path program 1 times [2024-11-16 18:15:14,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 18:15:14,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164336310] [2024-11-16 18:15:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 18:15:14,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 18:15:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat