./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-pthread/cs_szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/seq-pthread/cs_szymanski.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 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:11:08,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:11:08,225 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:11:08,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:11:08,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:11:08,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:11:08,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:11:08,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:11:08,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:11:08,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:11:08,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:11:08,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:11:08,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:11:08,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:11:08,267 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:11:08,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:11:08,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:11:08,268 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:11:08,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:11:08,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:11:08,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:11:08,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:11:08,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:11:08,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:11:08,273 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:11:08,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:11:08,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:11:08,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:11:08,274 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:11:08,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:11:08,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:11:08,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:11:08,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:11:08,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:11:08,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:11:08,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:11:08,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:11:08,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:11:08,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:11:08,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:11:08,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:11:08,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:11:08,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c5cb1d1ec86f1df708ae47d652aad74925d4eb7bf3fc3a2c37d76896a5071e8 [2024-11-10 00:11:08,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:11:08,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:11:08,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:11:08,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:11:08,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:11:08,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_szymanski.i [2024-11-10 00:11:10,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:11:10,396 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:11:10,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_szymanski.i [2024-11-10 00:11:10,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a318cdb55/87a4fa364928425197b606d1ddac4e37/FLAGd09b63dfc [2024-11-10 00:11:10,685 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a318cdb55/87a4fa364928425197b606d1ddac4e37 [2024-11-10 00:11:10,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:11:10,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:11:10,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:11:10,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:11:10,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:11:10,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:11:10" (1/1) ... [2024-11-10 00:11:10,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b27d186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:10, skipping insertion in model container [2024-11-10 00:11:10,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:11:10" (1/1) ... [2024-11-10 00:11:10,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:11:11,144 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/seq-pthread/cs_szymanski.i[23606,23619] [2024-11-10 00:11:11,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:11:11,292 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:11:11,332 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/seq-pthread/cs_szymanski.i[23606,23619] [2024-11-10 00:11:11,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:11:11,431 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:11:11,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11 WrapperNode [2024-11-10 00:11:11,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:11:11,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:11:11,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:11:11,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:11:11,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,464 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,500 INFO L138 Inliner]: procedures = 145, calls = 298, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 407 [2024-11-10 00:11:11,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:11:11,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:11:11,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:11:11,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:11:11,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,546 INFO L175 MemorySlicer]: Split 144 memory accesses to 16 slices as follows [2, 5, 8, 5, 8, 8, 29, 21, 7, 7, 7, 0, 6, 13, 5, 13]. 20 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [2, 0, 3, 0, 3, 3, 9, 9, 3, 3, 3, 0, 2, 0, 0, 0]. The 36 writes are split as follows [0, 1, 2, 1, 2, 2, 11, 6, 2, 2, 2, 0, 2, 1, 1, 1]. [2024-11-10 00:11:11,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:11:11,622 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:11:11,622 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:11:11,622 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:11:11,623 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (1/1) ... [2024-11-10 00:11:11,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:11:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:11:11,663 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) [2024-11-10 00:11:11,666 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 [2024-11-10 00:11:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 00:11:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 00:11:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 00:11:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 00:11:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 00:11:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 00:11:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 00:11:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-10 00:11:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-10 00:11:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-10 00:11:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-10 00:11:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-10 00:11:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 00:11:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 00:11:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:11:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 00:11:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 00:11:11,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 00:11:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 00:11:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 00:11:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 00:11:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-10 00:11:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-10 00:11:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-10 00:11:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-10 00:11:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-10 00:11:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-10 00:11:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-10 00:11:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 00:11:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 00:11:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 00:11:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 00:11:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 00:11:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-10 00:11:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-10 00:11:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-10 00:11:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-10 00:11:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-10 00:11:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-10 00:11:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-10 00:11:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-10 00:11:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-10 00:11:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-10 00:11:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-10 00:11:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 00:11:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-10 00:11:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-10 00:11:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-10 00:11:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-10 00:11:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-10 00:11:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-10 00:11:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:11:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:11:12,000 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:11:12,002 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:11:13,297 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-10 00:11:13,297 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:11:13,317 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:11:13,318 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:11:13,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:11:13 BoogieIcfgContainer [2024-11-10 00:11:13,319 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:11:13,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:11:13,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:11:13,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:11:13,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:11:10" (1/3) ... [2024-11-10 00:11:13,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa50d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:11:13, skipping insertion in model container [2024-11-10 00:11:13,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:11:11" (2/3) ... [2024-11-10 00:11:13,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa50d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:11:13, skipping insertion in model container [2024-11-10 00:11:13,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:11:13" (3/3) ... [2024-11-10 00:11:13,330 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_szymanski.i [2024-11-10 00:11:13,348 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:11:13,348 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 00:11:13,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:11:13,425 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;@4bb243ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:11:13,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 00:11:13,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 74 states have internal predecessors, (96), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-10 00:11:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-10 00:11:13,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:13,443 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:13,443 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:13,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1873484496, now seen corresponding path program 1 times [2024-11-10 00:11:13,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:13,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140644948] [2024-11-10 00:11:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:13,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:13,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-10 00:11:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 00:11:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 00:11:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 00:11:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 00:11:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 00:11:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-10 00:11:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 00:11:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 00:11:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 00:11:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-10 00:11:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 00:11:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 00:11:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 00:11:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 00:11:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 00:11:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 00:11:14,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:14,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140644948] [2024-11-10 00:11:14,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140644948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:14,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:11:14,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 00:11:14,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008606643] [2024-11-10 00:11:14,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:14,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 00:11:14,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 00:11:14,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 00:11:14,200 INFO L87 Difference]: Start difference. First operand has 112 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 74 states have internal predecessors, (96), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:14,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:14,245 INFO L93 Difference]: Finished difference Result 221 states and 347 transitions. [2024-11-10 00:11:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 00:11:14,247 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 121 [2024-11-10 00:11:14,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:14,257 INFO L225 Difference]: With dead ends: 221 [2024-11-10 00:11:14,258 INFO L226 Difference]: Without dead ends: 107 [2024-11-10 00:11:14,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 00:11:14,266 INFO L432 NwaCegarLoop]: 155 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, 155 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 [2024-11-10 00:11:14,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:11:14,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-10 00:11:14,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-10 00:11:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-10 00:11:14,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 151 transitions. [2024-11-10 00:11:14,336 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 151 transitions. Word has length 121 [2024-11-10 00:11:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:14,337 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 151 transitions. [2024-11-10 00:11:14,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 151 transitions. [2024-11-10 00:11:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-10 00:11:14,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:14,345 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:14,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:11:14,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:14,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:14,347 INFO L85 PathProgramCache]: Analyzing trace with hash -954007797, now seen corresponding path program 1 times [2024-11-10 00:11:14,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:14,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946245494] [2024-11-10 00:11:14,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:14,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 00:11:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 00:11:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-10 00:11:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-10 00:11:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-10 00:11:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-10 00:11:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-10 00:11:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 00:11:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 00:11:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 00:11:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 00:11:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 00:11:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 00:11:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-10 00:11:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-10 00:11:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:11:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 00:11:14,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:14,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946245494] [2024-11-10 00:11:14,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946245494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:14,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:11:14,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:11:14,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561669337] [2024-11-10 00:11:14,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:14,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:11:14,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:11:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:11:14,892 INFO L87 Difference]: Start difference. First operand 107 states and 151 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:14,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:14,950 INFO L93 Difference]: Finished difference Result 212 states and 300 transitions. [2024-11-10 00:11:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:11:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2024-11-10 00:11:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:14,955 INFO L225 Difference]: With dead ends: 212 [2024-11-10 00:11:14,957 INFO L226 Difference]: Without dead ends: 112 [2024-11-10 00:11:14,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:11:14,961 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 4 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:14,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 294 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:11:14,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-10 00:11:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2024-11-10 00:11:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-10 00:11:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 153 transitions. [2024-11-10 00:11:14,983 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 153 transitions. Word has length 122 [2024-11-10 00:11:14,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:14,984 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 153 transitions. [2024-11-10 00:11:14,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 153 transitions. [2024-11-10 00:11:14,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-10 00:11:14,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:14,989 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:14,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:11:14,990 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:14,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash -661279273, now seen corresponding path program 1 times [2024-11-10 00:11:14,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:14,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54653794] [2024-11-10 00:11:14,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:14,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-10 00:11:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 00:11:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 00:11:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 00:11:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 00:11:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-10 00:11:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 00:11:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 00:11:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 00:11:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-10 00:11:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 00:11:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 00:11:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 00:11:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 00:11:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 00:11:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-10 00:11:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,374 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 00:11:15,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:15,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54653794] [2024-11-10 00:11:15,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54653794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:15,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:11:15,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:11:15,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543716248] [2024-11-10 00:11:15,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:15,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:11:15,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:15,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:11:15,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:11:15,379 INFO L87 Difference]: Start difference. First operand 109 states and 153 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:15,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:15,424 INFO L93 Difference]: Finished difference Result 216 states and 305 transitions. [2024-11-10 00:11:15,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:11:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 127 [2024-11-10 00:11:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:15,428 INFO L225 Difference]: With dead ends: 216 [2024-11-10 00:11:15,430 INFO L226 Difference]: Without dead ends: 111 [2024-11-10 00:11:15,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:11:15,432 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:15,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 297 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:11:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-10 00:11:15,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2024-11-10 00:11:15,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 73 states have (on average 1.2465753424657535) internal successors, (91), 73 states have internal predecessors, (91), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-10 00:11:15,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 155 transitions. [2024-11-10 00:11:15,454 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 155 transitions. Word has length 127 [2024-11-10 00:11:15,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:15,455 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 155 transitions. [2024-11-10 00:11:15,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:15,455 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 155 transitions. [2024-11-10 00:11:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-10 00:11:15,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:15,460 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:15,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:11:15,460 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:15,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:15,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1838340248, now seen corresponding path program 1 times [2024-11-10 00:11:15,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:15,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389067739] [2024-11-10 00:11:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:15,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-10 00:11:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-10 00:11:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-10 00:11:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-10 00:11:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 00:11:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-10 00:11:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-10 00:11:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 00:11:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 00:11:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 00:11:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-10 00:11:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-10 00:11:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-10 00:11:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-10 00:11:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-10 00:11:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-10 00:11:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-10 00:11:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 00:11:15,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:15,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389067739] [2024-11-10 00:11:15,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389067739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:11:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289606733] [2024-11-10 00:11:15,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:15,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:15,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:11:15,900 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) [2024-11-10 00:11:15,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:11:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:16,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 00:11:16,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:11:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 00:11:16,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:11:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-10 00:11:16,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289606733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:11:16,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:11:16,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-10 00:11:16,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623078506] [2024-11-10 00:11:16,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:11:16,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 00:11:16,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:16,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 00:11:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:11:16,611 INFO L87 Difference]: Start difference. First operand 111 states and 155 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-10 00:11:16,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:16,657 INFO L93 Difference]: Finished difference Result 222 states and 312 transitions. [2024-11-10 00:11:16,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:11:16,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 129 [2024-11-10 00:11:16,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:16,661 INFO L225 Difference]: With dead ends: 222 [2024-11-10 00:11:16,661 INFO L226 Difference]: Without dead ends: 115 [2024-11-10 00:11:16,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 291 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:11:16,663 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:16,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 446 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:11:16,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-10 00:11:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-11-10 00:11:16,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 77 states have internal predecessors, (95), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-10 00:11:16,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 159 transitions. [2024-11-10 00:11:16,681 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 159 transitions. Word has length 129 [2024-11-10 00:11:16,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:16,682 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 159 transitions. [2024-11-10 00:11:16,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2024-11-10 00:11:16,682 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 159 transitions. [2024-11-10 00:11:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-10 00:11:16,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:16,685 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:16,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 00:11:16,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:16,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:16,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:16,887 INFO L85 PathProgramCache]: Analyzing trace with hash -521651878, now seen corresponding path program 2 times [2024-11-10 00:11:16,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:16,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638035325] [2024-11-10 00:11:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:16,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 00:11:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 00:11:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-10 00:11:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-10 00:11:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-10 00:11:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 00:11:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 00:11:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 00:11:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-10 00:11:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 00:11:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 00:11:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-10 00:11:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-10 00:11:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-10 00:11:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-10 00:11:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-10 00:11:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-10 00:11:17,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:17,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638035325] [2024-11-10 00:11:17,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638035325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:11:17,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363975022] [2024-11-10 00:11:17,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 00:11:17,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:17,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:11:17,236 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) [2024-11-10 00:11:17,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 00:11:17,621 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 00:11:17,621 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 00:11:17,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 00:11:17,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:11:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2024-11-10 00:11:17,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 00:11:17,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363975022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:17,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 00:11:17,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-10 00:11:17,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238666561] [2024-11-10 00:11:17,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:17,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 00:11:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:17,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 00:11:17,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 00:11:17,872 INFO L87 Difference]: Start difference. First operand 115 states and 159 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:17,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:17,916 INFO L93 Difference]: Finished difference Result 212 states and 301 transitions. [2024-11-10 00:11:17,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 00:11:17,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 133 [2024-11-10 00:11:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:17,923 INFO L225 Difference]: With dead ends: 212 [2024-11-10 00:11:17,924 INFO L226 Difference]: Without dead ends: 169 [2024-11-10 00:11:17,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:11:17,925 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 74 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:17,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 465 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:11:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-10 00:11:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-10 00:11:17,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 113 states have internal predecessors, (144), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (49), 45 states have call predecessors, (49), 45 states have call successors, (49) [2024-11-10 00:11:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 238 transitions. [2024-11-10 00:11:17,953 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 238 transitions. Word has length 133 [2024-11-10 00:11:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:17,953 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 238 transitions. [2024-11-10 00:11:17,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-10 00:11:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 238 transitions. [2024-11-10 00:11:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-10 00:11:17,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:17,957 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:17,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 00:11:18,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:18,158 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:18,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:18,159 INFO L85 PathProgramCache]: Analyzing trace with hash 532933983, now seen corresponding path program 1 times [2024-11-10 00:11:18,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:18,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880310886] [2024-11-10 00:11:18,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:18,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-10 00:11:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:11:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-10 00:11:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-10 00:11:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-10 00:11:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-10 00:11:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 00:11:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 00:11:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 00:11:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 00:11:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 00:11:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-10 00:11:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-10 00:11:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-10 00:11:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-10 00:11:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 00:11:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-10 00:11:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-11-10 00:11:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-10 00:11:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-10 00:11:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-10 00:11:18,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:18,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880310886] [2024-11-10 00:11:18,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880310886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:11:18,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580133070] [2024-11-10 00:11:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:18,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:18,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:11:18,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:11:18,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 00:11:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:19,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 00:11:19,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:11:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-10 00:11:19,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:11:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2024-11-10 00:11:19,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580133070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:11:19,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:11:19,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2024-11-10 00:11:19,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450485303] [2024-11-10 00:11:19,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:11:19,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 00:11:19,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:19,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 00:11:19,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:11:19,674 INFO L87 Difference]: Start difference. First operand 169 states and 238 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-10 00:11:24,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:24,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:24,785 INFO L93 Difference]: Finished difference Result 355 states and 499 transitions. [2024-11-10 00:11:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 00:11:24,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 202 [2024-11-10 00:11:24,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:24,788 INFO L225 Difference]: With dead ends: 355 [2024-11-10 00:11:24,788 INFO L226 Difference]: Without dead ends: 201 [2024-11-10 00:11:24,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 458 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-10 00:11:24,793 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 61 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 96 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:24,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 547 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-10 00:11:24,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-10 00:11:24,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 196. [2024-11-10 00:11:24,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 140 states have internal predecessors, (171), 45 states have call successors, (45), 10 states have call predecessors, (45), 12 states have return successors, (53), 45 states have call predecessors, (53), 45 states have call successors, (53) [2024-11-10 00:11:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 269 transitions. [2024-11-10 00:11:24,830 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 269 transitions. Word has length 202 [2024-11-10 00:11:24,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:24,831 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 269 transitions. [2024-11-10 00:11:24,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 6 states have internal predecessors, (103), 2 states have call successors, (62), 6 states have call predecessors, (62), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-10 00:11:24,831 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 269 transitions. [2024-11-10 00:11:24,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 00:11:24,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:24,835 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:24,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 00:11:25,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:11:25,036 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:25,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1056142847, now seen corresponding path program 2 times [2024-11-10 00:11:25,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:25,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110651210] [2024-11-10 00:11:25,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:25,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:25,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-10 00:11:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:11:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:11:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:11:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:11:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:11:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:11:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:11:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:11:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:11:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:11:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:11:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:11:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:11:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:11:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:11:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:11:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:11:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:11:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:11:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked. [2024-11-10 00:11:26,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:26,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110651210] [2024-11-10 00:11:26,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110651210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:26,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:11:26,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:11:26,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312973330] [2024-11-10 00:11:26,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:26,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:11:26,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:26,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:11:26,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:11:26,201 INFO L87 Difference]: Start difference. First operand 196 states and 269 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-10 00:11:30,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:31,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:35,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:11:37,447 INFO L93 Difference]: Finished difference Result 496 states and 698 transitions. [2024-11-10 00:11:37,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 00:11:37,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 224 [2024-11-10 00:11:37,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:11:37,451 INFO L225 Difference]: With dead ends: 496 [2024-11-10 00:11:37,451 INFO L226 Difference]: Without dead ends: 354 [2024-11-10 00:11:37,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:11:37,455 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 187 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 126 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-10 00:11:37,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 619 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2024-11-10 00:11:37,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-10 00:11:37,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 342. [2024-11-10 00:11:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 229 states have (on average 1.2489082969432315) internal successors, (286), 234 states have internal predecessors, (286), 87 states have call successors, (87), 20 states have call predecessors, (87), 25 states have return successors, (110), 87 states have call predecessors, (110), 87 states have call successors, (110) [2024-11-10 00:11:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 483 transitions. [2024-11-10 00:11:37,512 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 483 transitions. Word has length 224 [2024-11-10 00:11:37,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:11:37,513 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 483 transitions. [2024-11-10 00:11:37,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-10 00:11:37,513 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 483 transitions. [2024-11-10 00:11:37,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 00:11:37,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:11:37,517 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:11:37,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:11:37,517 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:11:37,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:11:37,518 INFO L85 PathProgramCache]: Analyzing trace with hash -520539775, now seen corresponding path program 1 times [2024-11-10 00:11:37,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:11:37,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671848748] [2024-11-10 00:11:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:11:37,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:11:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-10 00:11:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:11:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:11:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:11:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:11:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:11:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:11:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:11:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:11:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:11:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:11:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:11:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:11:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:11:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:11:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:11:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:11:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:11:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:11:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:11:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:11:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:11:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:11:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:11:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:11:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:11:38,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:11:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked. [2024-11-10 00:11:38,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:11:38,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671848748] [2024-11-10 00:11:38,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671848748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:11:38,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:11:38,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:11:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339997310] [2024-11-10 00:11:38,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:11:38,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:11:38,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:11:38,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:11:38,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:11:38,550 INFO L87 Difference]: Start difference. First operand 342 states and 483 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-10 00:11:42,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:46,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:50,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:54,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:11:58,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:12:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:12:00,329 INFO L93 Difference]: Finished difference Result 615 states and 859 transitions. [2024-11-10 00:12:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 00:12:00,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 224 [2024-11-10 00:12:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:12:00,332 INFO L225 Difference]: With dead ends: 615 [2024-11-10 00:12:00,333 INFO L226 Difference]: Without dead ends: 318 [2024-11-10 00:12:00,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-10 00:12:00,335 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 148 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 49 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-10 00:12:00,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 677 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 648 Invalid, 5 Unknown, 0 Unchecked, 21.4s Time] [2024-11-10 00:12:00,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-10 00:12:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 309. [2024-11-10 00:12:00,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 208 states have (on average 1.2115384615384615) internal successors, (252), 212 states have internal predecessors, (252), 78 states have call successors, (78), 18 states have call predecessors, (78), 22 states have return successors, (92), 78 states have call predecessors, (92), 78 states have call successors, (92) [2024-11-10 00:12:00,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 422 transitions. [2024-11-10 00:12:00,369 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 422 transitions. Word has length 224 [2024-11-10 00:12:00,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:12:00,370 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 422 transitions. [2024-11-10 00:12:00,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-10 00:12:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 422 transitions. [2024-11-10 00:12:00,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 00:12:00,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:12:00,373 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:12:00,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:12:00,374 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:12:00,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:12:00,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1231720771, now seen corresponding path program 1 times [2024-11-10 00:12:00,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:12:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644512414] [2024-11-10 00:12:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:12:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:12:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:00,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 00:12:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:12:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:12:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:12:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:12:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:12:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:12:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:12:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:12:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:12:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:12:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:12:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:12:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:12:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:12:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:12:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:12:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:12:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:12:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:12:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:12:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:12:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:12:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:12:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:12:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2024-11-10 00:12:01,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:12:01,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644512414] [2024-11-10 00:12:01,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644512414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:12:01,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212214417] [2024-11-10 00:12:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:12:01,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:12:01,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:12:01,467 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:12:01,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 00:12:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:02,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 00:12:02,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:12:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 288 proven. 4 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-10 00:12:02,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:12:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2024-11-10 00:12:02,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212214417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:12:02,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:12:02,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 5] total 16 [2024-11-10 00:12:02,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813859859] [2024-11-10 00:12:02,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:12:02,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 00:12:02,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:12:02,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 00:12:02,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-10 00:12:02,620 INFO L87 Difference]: Start difference. First operand 309 states and 422 transitions. Second operand has 16 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (56), 8 states have call predecessors, (56), 7 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) [2024-11-10 00:12:07,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:12:11,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 00:12:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:12:13,160 INFO L93 Difference]: Finished difference Result 602 states and 846 transitions. [2024-11-10 00:12:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 00:12:13,161 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (56), 8 states have call predecessors, (56), 7 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) Word has length 224 [2024-11-10 00:12:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:12:13,164 INFO L225 Difference]: With dead ends: 602 [2024-11-10 00:12:13,164 INFO L226 Difference]: Without dead ends: 337 [2024-11-10 00:12:13,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2024-11-10 00:12:13,167 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 284 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 258 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-10 00:12:13,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 604 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 625 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2024-11-10 00:12:13,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-10 00:12:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 330. [2024-11-10 00:12:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 226 states have (on average 1.2345132743362832) internal successors, (279), 230 states have internal predecessors, (279), 73 states have call successors, (73), 26 states have call predecessors, (73), 30 states have return successors, (97), 73 states have call predecessors, (97), 73 states have call successors, (97) [2024-11-10 00:12:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 449 transitions. [2024-11-10 00:12:13,208 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 449 transitions. Word has length 224 [2024-11-10 00:12:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:12:13,210 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 449 transitions. [2024-11-10 00:12:13,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 9 states have call successors, (56), 8 states have call predecessors, (56), 7 states have return successors, (55), 7 states have call predecessors, (55), 9 states have call successors, (55) [2024-11-10 00:12:13,210 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 449 transitions. [2024-11-10 00:12:13,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 00:12:13,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:12:13,214 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 12, 9, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:12:13,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 00:12:13,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:12:13,415 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:12:13,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:12:13,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1676569213, now seen corresponding path program 1 times [2024-11-10 00:12:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:12:13,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301832844] [2024-11-10 00:12:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:12:13,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:12:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:15,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 00:12:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-10 00:12:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-10 00:12:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-10 00:12:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-10 00:12:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 00:12:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 00:12:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 00:12:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-10 00:12:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 00:12:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 00:12:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-10 00:12:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-10 00:12:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 00:12:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 00:12:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 00:12:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 00:12:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 00:12:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-10 00:12:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 00:12:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 00:12:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 00:12:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-10 00:12:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-11-10 00:12:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-10 00:12:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-10 00:12:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1102 trivial. 0 not checked. [2024-11-10 00:12:16,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:12:16,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301832844] [2024-11-10 00:12:16,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301832844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:12:16,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480296232] [2024-11-10 00:12:16,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:12:16,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:12:16,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:12:16,834 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 00:12:16,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 00:12:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:12:17,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-10 00:12:17,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:12:17,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-10 00:12:27,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-10 00:12:27,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 00:12:27,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2024-11-10 00:12:28,648 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2024-11-10 00:12:28,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104