./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.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 6b3d37dbb1f844bbdab9795055d991e82d88af691e0e65987480a92814525937 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 13:31:44,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 13:31:44,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 13:31:44,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 13:31:44,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 13:31:44,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 13:31:44,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 13:31:44,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 13:31:44,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 13:31:44,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 13:31:44,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 13:31:44,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 13:31:44,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 13:31:44,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 13:31:44,992 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 13:31:44,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 13:31:44,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 13:31:44,993 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 13:31:44,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 13:31:44,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 13:31:44,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 13:31:44,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 13:31:44,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 13:31:44,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 13:31:44,998 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 13:31:44,998 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 13:31:44,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 13:31:44,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 13:31:44,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 13:31:44,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 13:31:44,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 13:31:45,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 13:31:45,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:31:45,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 13:31:45,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 13:31:45,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 13:31:45,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 13:31:45,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 13:31:45,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 13:31:45,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 13:31:45,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 13:31:45,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 13:31:45,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b3d37dbb1f844bbdab9795055d991e82d88af691e0e65987480a92814525937 [2024-10-14 13:31:45,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 13:31:45,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 13:31:45,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 13:31:45,267 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 13:31:45,268 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 13:31:45,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i [2024-10-14 13:31:46,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 13:31:46,939 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 13:31:46,940 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i [2024-10-14 13:31:46,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9375c0f5/1d1668c835dc42ed8f294dfa41dd1f41/FLAGc63c0bebd [2024-10-14 13:31:46,961 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9375c0f5/1d1668c835dc42ed8f294dfa41dd1f41 [2024-10-14 13:31:46,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 13:31:46,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 13:31:46,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 13:31:46,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 13:31:46,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 13:31:46,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:31:46" (1/1) ... [2024-10-14 13:31:46,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79f9bf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:46, skipping insertion in model container [2024-10-14 13:31:46,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:31:46" (1/1) ... [2024-10-14 13:31:47,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 13:31:47,183 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i[917,930] [2024-10-14 13:31:47,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:31:47,252 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 13:31:47,262 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-12.i[917,930] [2024-10-14 13:31:47,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 13:31:47,313 INFO L204 MainTranslator]: Completed translation [2024-10-14 13:31:47,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47 WrapperNode [2024-10-14 13:31:47,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 13:31:47,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 13:31:47,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 13:31:47,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 13:31:47,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,383 INFO L138 Inliner]: procedures = 26, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 458 [2024-10-14 13:31:47,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 13:31:47,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 13:31:47,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 13:31:47,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 13:31:47,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,420 INFO L175 MemorySlicer]: Split 123 memory accesses to 4 slices as follows [2, 38, 12, 71]. 58 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 2, 4]. The 14 writes are split as follows [0, 8, 2, 4]. [2024-10-14 13:31:47,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 13:31:47,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 13:31:47,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 13:31:47,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 13:31:47,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (1/1) ... [2024-10-14 13:31:47,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 13:31:47,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:31:47,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 13:31:47,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 13:31:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 13:31:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 13:31:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 13:31:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 13:31:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 13:31:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 13:31:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 13:31:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 13:31:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 13:31:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 13:31:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 13:31:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 13:31:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 13:31:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 13:31:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 13:31:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 13:31:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 13:31:47,685 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 13:31:47,687 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 13:31:48,189 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-10-14 13:31:48,189 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 13:31:48,227 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 13:31:48,227 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 13:31:48,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:31:48 BoogieIcfgContainer [2024-10-14 13:31:48,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 13:31:48,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 13:31:48,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 13:31:48,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 13:31:48,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:31:46" (1/3) ... [2024-10-14 13:31:48,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ffd140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:31:48, skipping insertion in model container [2024-10-14 13:31:48,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:31:47" (2/3) ... [2024-10-14 13:31:48,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ffd140 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:31:48, skipping insertion in model container [2024-10-14 13:31:48,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:31:48" (3/3) ... [2024-10-14 13:31:48,246 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-12.i [2024-10-14 13:31:48,263 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 13:31:48,264 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 13:31:48,323 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 13:31:48,328 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;@6f268d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 13:31:48,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 13:31:48,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 73 states have internal predecessors, (103), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:31:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:31:48,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:31:48,348 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:31:48,349 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:31:48,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:31:48,355 INFO L85 PathProgramCache]: Analyzing trace with hash 352771580, now seen corresponding path program 1 times [2024-10-14 13:31:48,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:31:48,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768109838] [2024-10-14 13:31:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:31:48,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:31:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:31:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:31:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:31:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:31:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:31:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:31:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:31:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:31:48,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:31:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:31:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:31:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:31:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:31:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:31:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:31:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:31:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:31:48,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:31:48,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768109838] [2024-10-14 13:31:48,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768109838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:31:48,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:31:48,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 13:31:48,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035528050] [2024-10-14 13:31:48,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:31:48,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 13:31:48,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:31:48,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 13:31:48,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:31:48,819 INFO L87 Difference]: Start difference. First operand has 91 states, 72 states have (on average 1.4305555555555556) internal successors, (103), 73 states have internal predecessors, (103), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 13:31:48,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:31:48,895 INFO L93 Difference]: Finished difference Result 173 states and 274 transitions. [2024-10-14 13:31:48,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 13:31:48,900 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 112 [2024-10-14 13:31:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:31:48,909 INFO L225 Difference]: With dead ends: 173 [2024-10-14 13:31:48,909 INFO L226 Difference]: Without dead ends: 83 [2024-10-14 13:31:48,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 13:31:48,916 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:31:48,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:31:48,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-14 13:31:48,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-14 13:31:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 65 states have (on average 1.323076923076923) internal successors, (86), 65 states have internal predecessors, (86), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:31:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2024-10-14 13:31:48,964 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 112 [2024-10-14 13:31:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:31:48,965 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2024-10-14 13:31:48,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 13:31:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2024-10-14 13:31:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 13:31:48,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:31:48,971 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:31:48,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 13:31:48,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:31:48,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:31:48,973 INFO L85 PathProgramCache]: Analyzing trace with hash 698291676, now seen corresponding path program 1 times [2024-10-14 13:31:48,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:31:48,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104968200] [2024-10-14 13:31:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:31:48,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:31:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:31:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:31:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:31:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:31:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:31:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:31:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:31:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:31:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:31:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:31:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:31:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:31:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:31:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:31:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:31:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:31:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:31:49,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:31:49,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104968200] [2024-10-14 13:31:49,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104968200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:31:49,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:31:49,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 13:31:49,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111424527] [2024-10-14 13:31:49,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:31:49,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 13:31:49,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:31:49,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 13:31:49,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:31:49,365 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:31:49,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:31:49,414 INFO L93 Difference]: Finished difference Result 165 states and 235 transitions. [2024-10-14 13:31:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:31:49,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 112 [2024-10-14 13:31:49,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:31:49,418 INFO L225 Difference]: With dead ends: 165 [2024-10-14 13:31:49,420 INFO L226 Difference]: Without dead ends: 83 [2024-10-14 13:31:49,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 13:31:49,423 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 13:31:49,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 13:31:49,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-14 13:31:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-14 13:31:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 65 states have internal predecessors, (85), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:31:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2024-10-14 13:31:49,437 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 112 [2024-10-14 13:31:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:31:49,439 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2024-10-14 13:31:49,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:31:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2024-10-14 13:31:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 13:31:49,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:31:49,441 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:31:49,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 13:31:49,442 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:31:49,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:31:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash 555057374, now seen corresponding path program 1 times [2024-10-14 13:31:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:31:49,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181194359] [2024-10-14 13:31:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:31:49,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:31:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:31:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:31:49,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:31:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:31:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:31:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:31:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:31:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:31:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:31:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:31:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:31:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:31:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:31:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:31:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:31:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:31:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:49,735 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:31:49,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:31:49,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181194359] [2024-10-14 13:31:49,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181194359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:31:49,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:31:49,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:31:49,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877893975] [2024-10-14 13:31:49,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:31:49,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:31:49,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:31:49,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:31:49,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:31:49,739 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:31:49,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:31:49,813 INFO L93 Difference]: Finished difference Result 168 states and 237 transitions. [2024-10-14 13:31:49,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:31:49,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 114 [2024-10-14 13:31:49,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:31:49,815 INFO L225 Difference]: With dead ends: 168 [2024-10-14 13:31:49,816 INFO L226 Difference]: Without dead ends: 86 [2024-10-14 13:31:49,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:31:49,820 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:31:49,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 431 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:31:49,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-14 13:31:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-10-14 13:31:49,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:31:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2024-10-14 13:31:49,839 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 114 [2024-10-14 13:31:49,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:31:49,843 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-10-14 13:31:49,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:31:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2024-10-14 13:31:49,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 13:31:49,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:31:49,848 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:31:49,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 13:31:49,848 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:31:49,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:31:49,849 INFO L85 PathProgramCache]: Analyzing trace with hash -80309382, now seen corresponding path program 1 times [2024-10-14 13:31:49,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:31:49,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469657394] [2024-10-14 13:31:49,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:31:49,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:31:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:31:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:31:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:31:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:31:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:31:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:31:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:31:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:31:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:31:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:31:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:31:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:31:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:31:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:31:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:31:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:31:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:50,620 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:31:50,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:31:50,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469657394] [2024-10-14 13:31:50,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469657394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:31:50,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:31:50,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:31:50,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039904862] [2024-10-14 13:31:50,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:31:50,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:31:50,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:31:50,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:31:50,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:31:50,625 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:31:50,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:31:50,852 INFO L93 Difference]: Finished difference Result 125 states and 169 transitions. [2024-10-14 13:31:50,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:31:50,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 116 [2024-10-14 13:31:50,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:31:50,854 INFO L225 Difference]: With dead ends: 125 [2024-10-14 13:31:50,854 INFO L226 Difference]: Without dead ends: 123 [2024-10-14 13:31:50,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 13:31:50,856 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 152 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:31:50,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 472 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:31:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-14 13:31:50,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 110. [2024-10-14 13:31:50,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 92 states have internal predecessors, (119), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:31:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 151 transitions. [2024-10-14 13:31:50,872 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 151 transitions. Word has length 116 [2024-10-14 13:31:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:31:50,873 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 151 transitions. [2024-10-14 13:31:50,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 7 states have internal predecessors, (39), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:31:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 151 transitions. [2024-10-14 13:31:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 13:31:50,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:31:50,879 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:31:50,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 13:31:50,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:31:50,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:31:50,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1148274937, now seen corresponding path program 1 times [2024-10-14 13:31:50,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:31:50,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659226903] [2024-10-14 13:31:50,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:31:50,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:31:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:31:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:31:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:31:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:31:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:31:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:31:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:31:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:31:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:31:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:31:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:31:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:31:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:31:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:31:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:31:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:31:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:53,956 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-10-14 13:31:53,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:31:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659226903] [2024-10-14 13:31:53,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659226903] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:31:53,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883159110] [2024-10-14 13:31:53,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:31:53,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:31:53,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:31:53,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:31:53,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 13:31:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:31:54,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-10-14 13:31:54,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:31:54,318 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 15 treesize of output 1 [2024-10-14 13:31:55,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-14 13:31:55,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-10-14 13:31:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 13:31:57,756 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-14 13:31:57,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2024-10-14 13:31:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 24 proven. 192 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-14 13:31:58,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:31:58,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883159110] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:31:58,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 13:31:58,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 42 [2024-10-14 13:31:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779305790] [2024-10-14 13:31:58,833 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 13:31:58,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-10-14 13:31:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:31:58,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-10-14 13:31:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=2137, Unknown=0, NotChecked=0, Total=2352 [2024-10-14 13:31:58,836 INFO L87 Difference]: Start difference. First operand 110 states and 151 transitions. Second operand has 42 states, 34 states have (on average 2.764705882352941) internal successors, (94), 34 states have internal predecessors, (94), 11 states have call successors, (32), 6 states have call predecessors, (32), 7 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-10-14 13:32:02,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:02,268 INFO L93 Difference]: Finished difference Result 181 states and 231 transitions. [2024-10-14 13:32:02,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-14 13:32:02,269 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 34 states have (on average 2.764705882352941) internal successors, (94), 34 states have internal predecessors, (94), 11 states have call successors, (32), 6 states have call predecessors, (32), 7 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) Word has length 117 [2024-10-14 13:32:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:02,271 INFO L225 Difference]: With dead ends: 181 [2024-10-14 13:32:02,273 INFO L226 Difference]: Without dead ends: 179 [2024-10-14 13:32:02,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=916, Invalid=5890, Unknown=0, NotChecked=0, Total=6806 [2024-10-14 13:32:02,276 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 810 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:02,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2110 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 13:32:02,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-10-14 13:32:02,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 126. [2024-10-14 13:32:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 104 states have internal predecessors, (131), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:32:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 163 transitions. [2024-10-14 13:32:02,306 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 163 transitions. Word has length 117 [2024-10-14 13:32:02,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:02,306 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 163 transitions. [2024-10-14 13:32:02,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 34 states have (on average 2.764705882352941) internal successors, (94), 34 states have internal predecessors, (94), 11 states have call successors, (32), 6 states have call predecessors, (32), 7 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-10-14 13:32:02,306 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 163 transitions. [2024-10-14 13:32:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 13:32:02,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:02,311 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:02,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 13:32:02,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:02,516 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:02,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash 965098533, now seen corresponding path program 1 times [2024-10-14 13:32:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018448264] [2024-10-14 13:32:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:02,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:04,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:04,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:04,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:04,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:05,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-10-14 13:32:05,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:05,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018448264] [2024-10-14 13:32:05,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018448264] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:05,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898604267] [2024-10-14 13:32:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:05,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:05,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:32:05,133 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) [2024-10-14 13:32:05,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 13:32:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:05,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-10-14 13:32:05,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:32:05,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2024-10-14 13:32:06,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2024-10-14 13:32:07,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2024-10-14 13:32:08,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 13:32:08,375 INFO L349 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2024-10-14 13:32:08,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 46 [2024-10-14 13:32:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 8 proven. 208 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-14 13:32:08,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:32:09,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898604267] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:09,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 13:32:09,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 27] total 46 [2024-10-14 13:32:09,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116788608] [2024-10-14 13:32:09,405 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 13:32:09,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-10-14 13:32:09,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:09,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-10-14 13:32:09,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=2547, Unknown=0, NotChecked=0, Total=2756 [2024-10-14 13:32:09,408 INFO L87 Difference]: Start difference. First operand 126 states and 163 transitions. Second operand has 46 states, 38 states have (on average 2.526315789473684) internal successors, (96), 37 states have internal predecessors, (96), 12 states have call successors, (32), 6 states have call predecessors, (32), 7 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-10-14 13:32:14,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:14,358 INFO L93 Difference]: Finished difference Result 258 states and 329 transitions. [2024-10-14 13:32:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-14 13:32:14,359 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 38 states have (on average 2.526315789473684) internal successors, (96), 37 states have internal predecessors, (96), 12 states have call successors, (32), 6 states have call predecessors, (32), 7 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) Word has length 118 [2024-10-14 13:32:14,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:14,361 INFO L225 Difference]: With dead ends: 258 [2024-10-14 13:32:14,361 INFO L226 Difference]: Without dead ends: 256 [2024-10-14 13:32:14,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3515 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1090, Invalid=10466, Unknown=0, NotChecked=0, Total=11556 [2024-10-14 13:32:14,365 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 659 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:14,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1903 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 13:32:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-14 13:32:14,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 128. [2024-10-14 13:32:14,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 106 states have internal predecessors, (134), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:32:14,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 166 transitions. [2024-10-14 13:32:14,399 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 166 transitions. Word has length 118 [2024-10-14 13:32:14,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:14,399 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 166 transitions. [2024-10-14 13:32:14,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 38 states have (on average 2.526315789473684) internal successors, (96), 37 states have internal predecessors, (96), 12 states have call successors, (32), 6 states have call predecessors, (32), 7 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-10-14 13:32:14,400 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 166 transitions. [2024-10-14 13:32:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 13:32:14,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:14,401 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:14,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 13:32:14,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-14 13:32:14,602 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:14,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash 926800935, now seen corresponding path program 1 times [2024-10-14 13:32:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:14,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502783700] [2024-10-14 13:32:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:14,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:14,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502783700] [2024-10-14 13:32:14,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502783700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:14,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:14,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:32:14,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087004592] [2024-10-14 13:32:14,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:14,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:32:14,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:14,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:32:14,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:32:14,755 INFO L87 Difference]: Start difference. First operand 128 states and 166 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:14,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:14,853 INFO L93 Difference]: Finished difference Result 334 states and 423 transitions. [2024-10-14 13:32:14,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:32:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-10-14 13:32:14,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:14,855 INFO L225 Difference]: With dead ends: 334 [2024-10-14 13:32:14,855 INFO L226 Difference]: Without dead ends: 207 [2024-10-14 13:32:14,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:32:14,856 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 52 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:14,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 474 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:32:14,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-14 13:32:14,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-10-14 13:32:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 171 states have (on average 1.2280701754385965) internal successors, (210), 172 states have internal predecessors, (210), 22 states have call successors, (22), 10 states have call predecessors, (22), 10 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-14 13:32:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 254 transitions. [2024-10-14 13:32:14,887 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 254 transitions. Word has length 119 [2024-10-14 13:32:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:14,887 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 254 transitions. [2024-10-14 13:32:14,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:14,888 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 254 transitions. [2024-10-14 13:32:14,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 13:32:14,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:14,889 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:14,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 13:32:14,890 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:14,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:14,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1084696468, now seen corresponding path program 1 times [2024-10-14 13:32:14,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:14,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593190583] [2024-10-14 13:32:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:14,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-10-14 13:32:15,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593190583] [2024-10-14 13:32:15,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593190583] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569736335] [2024-10-14 13:32:15,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:15,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:15,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:32:15,446 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) [2024-10-14 13:32:15,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 13:32:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:15,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 13:32:15,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:32:15,737 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 15 treesize of output 1 [2024-10-14 13:32:16,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-10-14 13:32:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 10 proven. 250 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 13:32:16,110 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:32:16,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2024-10-14 13:32:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-10-14 13:32:16,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569736335] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 13:32:16,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 13:32:16,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 21 [2024-10-14 13:32:16,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332271355] [2024-10-14 13:32:16,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 13:32:16,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 13:32:16,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 13:32:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-10-14 13:32:16,417 INFO L87 Difference]: Start difference. First operand 204 states and 254 transitions. Second operand has 21 states, 18 states have (on average 5.333333333333333) internal successors, (96), 20 states have internal predecessors, (96), 11 states have call successors, (47), 4 states have call predecessors, (47), 6 states have return successors, (47), 8 states have call predecessors, (47), 11 states have call successors, (47) [2024-10-14 13:32:16,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:16,946 INFO L93 Difference]: Finished difference Result 442 states and 541 transitions. [2024-10-14 13:32:16,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 13:32:16,947 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 5.333333333333333) internal successors, (96), 20 states have internal predecessors, (96), 11 states have call successors, (47), 4 states have call predecessors, (47), 6 states have return successors, (47), 8 states have call predecessors, (47), 11 states have call successors, (47) Word has length 119 [2024-10-14 13:32:16,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:16,951 INFO L225 Difference]: With dead ends: 442 [2024-10-14 13:32:16,952 INFO L226 Difference]: Without dead ends: 239 [2024-10-14 13:32:16,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2024-10-14 13:32:16,953 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 325 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:16,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 330 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:32:16,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-10-14 13:32:16,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 153. [2024-10-14 13:32:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 130 states have (on average 1.2307692307692308) internal successors, (160), 130 states have internal predecessors, (160), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:32:16,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 192 transitions. [2024-10-14 13:32:16,986 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 192 transitions. Word has length 119 [2024-10-14 13:32:16,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:16,986 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 192 transitions. [2024-10-14 13:32:16,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 5.333333333333333) internal successors, (96), 20 states have internal predecessors, (96), 11 states have call successors, (47), 4 states have call predecessors, (47), 6 states have return successors, (47), 8 states have call predecessors, (47), 11 states have call successors, (47) [2024-10-14 13:32:16,987 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 192 transitions. [2024-10-14 13:32:16,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 13:32:16,988 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:16,988 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:17,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 13:32:17,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:17,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:17,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1212399850, now seen corresponding path program 1 times [2024-10-14 13:32:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:17,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200023789] [2024-10-14 13:32:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:17,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:18,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-10-14 13:32:18,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200023789] [2024-10-14 13:32:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200023789] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321767917] [2024-10-14 13:32:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:32:18,282 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) [2024-10-14 13:32:18,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 13:32:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:18,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-14 13:32:18,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:32:18,741 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 15 treesize of output 1 [2024-10-14 13:32:19,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 13:32:19,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-10-14 13:32:19,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2024-10-14 13:32:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 10 proven. 250 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 13:32:19,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:32:19,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321767917] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:19,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 13:32:19,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9] total 25 [2024-10-14 13:32:19,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973588781] [2024-10-14 13:32:19,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 13:32:19,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-14 13:32:19,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-14 13:32:19,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2024-10-14 13:32:19,809 INFO L87 Difference]: Start difference. First operand 153 states and 192 transitions. Second operand has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 23 states have internal predecessors, (94), 7 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (32), 5 states have call predecessors, (32), 7 states have call successors, (32) [2024-10-14 13:32:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:21,215 INFO L93 Difference]: Finished difference Result 358 states and 446 transitions. [2024-10-14 13:32:21,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-14 13:32:21,216 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 23 states have internal predecessors, (94), 7 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (32), 5 states have call predecessors, (32), 7 states have call successors, (32) Word has length 120 [2024-10-14 13:32:21,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:21,217 INFO L225 Difference]: With dead ends: 358 [2024-10-14 13:32:21,217 INFO L226 Difference]: Without dead ends: 206 [2024-10-14 13:32:21,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=465, Invalid=2291, Unknown=0, NotChecked=0, Total=2756 [2024-10-14 13:32:21,219 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 688 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:21,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 1094 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:32:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-14 13:32:21,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 153. [2024-10-14 13:32:21,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 130 states have (on average 1.2230769230769232) internal successors, (159), 130 states have internal predecessors, (159), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 13:32:21,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 191 transitions. [2024-10-14 13:32:21,241 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 191 transitions. Word has length 120 [2024-10-14 13:32:21,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:21,242 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 191 transitions. [2024-10-14 13:32:21,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.2727272727272725) internal successors, (94), 23 states have internal predecessors, (94), 7 states have call successors, (32), 4 states have call predecessors, (32), 5 states have return successors, (32), 5 states have call predecessors, (32), 7 states have call successors, (32) [2024-10-14 13:32:21,242 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 191 transitions. [2024-10-14 13:32:21,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-14 13:32:21,243 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:21,243 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:21,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 13:32:21,444 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 [2024-10-14 13:32:21,444 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:21,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:21,444 INFO L85 PathProgramCache]: Analyzing trace with hash 404790098, now seen corresponding path program 1 times [2024-10-14 13:32:21,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:21,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576463027] [2024-10-14 13:32:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:21,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 13:32:21,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55393471] [2024-10-14 13:32:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:21,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:21,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:32:21,512 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) [2024-10-14 13:32:21,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 13:32:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:21,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 13:32:21,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:32:22,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 13:32:22,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 13:32:22,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 13:32:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-10-14 13:32:22,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:32:22,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:22,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576463027] [2024-10-14 13:32:22,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 13:32:22,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55393471] [2024-10-14 13:32:22,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55393471] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:22,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 13:32:22,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 13:32:22,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496456869] [2024-10-14 13:32:22,456 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 13:32:22,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:32:22,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:22,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:32:22,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:32:22,457 INFO L87 Difference]: Start difference. First operand 153 states and 191 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 13:32:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:22,618 INFO L93 Difference]: Finished difference Result 403 states and 499 transitions. [2024-10-14 13:32:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:32:22,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2024-10-14 13:32:22,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:22,620 INFO L225 Difference]: With dead ends: 403 [2024-10-14 13:32:22,620 INFO L226 Difference]: Without dead ends: 251 [2024-10-14 13:32:22,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:32:22,621 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 54 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:22,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 336 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:32:22,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-14 13:32:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 239. [2024-10-14 13:32:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 194 states have (on average 1.1804123711340206) internal successors, (229), 194 states have internal predecessors, (229), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:32:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 293 transitions. [2024-10-14 13:32:22,669 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 293 transitions. Word has length 121 [2024-10-14 13:32:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:22,669 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 293 transitions. [2024-10-14 13:32:22,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 13:32:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 293 transitions. [2024-10-14 13:32:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 13:32:22,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:22,671 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:22,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 13:32:22,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 13:32:22,876 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:22,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:22,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1323312016, now seen corresponding path program 1 times [2024-10-14 13:32:22,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:22,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901983876] [2024-10-14 13:32:22,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:22,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 13:32:22,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1153324926] [2024-10-14 13:32:22,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:22,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:22,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 13:32:22,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 13:32:22,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 13:32:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:23,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-14 13:32:23,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 13:32:23,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 13:32:23,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 13:32:23,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-14 13:32:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-10-14 13:32:23,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 13:32:23,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901983876] [2024-10-14 13:32:23,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 13:32:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153324926] [2024-10-14 13:32:23,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153324926] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 13:32:23,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 13:32:23,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 13:32:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7762190] [2024-10-14 13:32:23,974 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 13:32:23,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:32:23,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:23,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:32:23,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-14 13:32:23,976 INFO L87 Difference]: Start difference. First operand 239 states and 293 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 13:32:24,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:24,148 INFO L93 Difference]: Finished difference Result 476 states and 586 transitions. [2024-10-14 13:32:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 13:32:24,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 122 [2024-10-14 13:32:24,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:24,150 INFO L225 Difference]: With dead ends: 476 [2024-10-14 13:32:24,150 INFO L226 Difference]: Without dead ends: 238 [2024-10-14 13:32:24,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 13:32:24,151 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 40 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:24,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 335 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:32:24,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-10-14 13:32:24,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 231. [2024-10-14 13:32:24,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 186 states have (on average 1.1720430107526882) internal successors, (218), 186 states have internal predecessors, (218), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:32:24,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 282 transitions. [2024-10-14 13:32:24,196 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 282 transitions. Word has length 122 [2024-10-14 13:32:24,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:24,196 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 282 transitions. [2024-10-14 13:32:24,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 13:32:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 282 transitions. [2024-10-14 13:32:24,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:24,197 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:24,197 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:24,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 13:32:24,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 13:32:24,399 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:24,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1363403663, now seen corresponding path program 1 times [2024-10-14 13:32:24,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:24,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582903198] [2024-10-14 13:32:24,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:24,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:24,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:24,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:24,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582903198] [2024-10-14 13:32:24,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582903198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:24,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:24,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:32:24,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415117581] [2024-10-14 13:32:24,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:24,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:32:24,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:24,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:32:24,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:32:24,931 INFO L87 Difference]: Start difference. First operand 231 states and 282 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:25,253 INFO L93 Difference]: Finished difference Result 385 states and 476 transitions. [2024-10-14 13:32:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:32:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 13:32:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:25,255 INFO L225 Difference]: With dead ends: 385 [2024-10-14 13:32:25,256 INFO L226 Difference]: Without dead ends: 233 [2024-10-14 13:32:25,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:32:25,257 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 88 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:25,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 318 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:32:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-10-14 13:32:25,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-10-14 13:32:25,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 188 states have (on average 1.175531914893617) internal successors, (221), 188 states have internal predecessors, (221), 32 states have call successors, (32), 12 states have call predecessors, (32), 12 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 13:32:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 285 transitions. [2024-10-14 13:32:25,305 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 285 transitions. Word has length 124 [2024-10-14 13:32:25,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:25,306 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 285 transitions. [2024-10-14 13:32:25,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:25,306 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 285 transitions. [2024-10-14 13:32:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:25,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:25,307 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:25,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 13:32:25,307 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:25,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1126125299, now seen corresponding path program 1 times [2024-10-14 13:32:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:25,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646630488] [2024-10-14 13:32:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:25,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:26,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:26,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646630488] [2024-10-14 13:32:26,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646630488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:26,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:26,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:32:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784158387] [2024-10-14 13:32:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:26,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:32:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:32:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:32:26,547 INFO L87 Difference]: Start difference. First operand 233 states and 285 transitions. Second operand has 12 states, 10 states have (on average 4.7) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:27,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:27,228 INFO L93 Difference]: Finished difference Result 547 states and 667 transitions. [2024-10-14 13:32:27,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:32:27,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2024-10-14 13:32:27,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:27,230 INFO L225 Difference]: With dead ends: 547 [2024-10-14 13:32:27,230 INFO L226 Difference]: Without dead ends: 393 [2024-10-14 13:32:27,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:32:27,231 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 283 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:27,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 575 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:32:27,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-10-14 13:32:27,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 389. [2024-10-14 13:32:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 312 states have (on average 1.169871794871795) internal successors, (365), 314 states have internal predecessors, (365), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 469 transitions. [2024-10-14 13:32:27,309 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 469 transitions. Word has length 124 [2024-10-14 13:32:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:27,309 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 469 transitions. [2024-10-14 13:32:27,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 469 transitions. [2024-10-14 13:32:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:27,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:27,310 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:27,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 13:32:27,310 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:27,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:27,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1827189877, now seen corresponding path program 1 times [2024-10-14 13:32:27,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:27,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121819002] [2024-10-14 13:32:27,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:27,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:27,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:27,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121819002] [2024-10-14 13:32:27,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121819002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:27,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:27,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:32:27,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662745613] [2024-10-14 13:32:27,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:27,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:32:27,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:27,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:32:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:32:27,689 INFO L87 Difference]: Start difference. First operand 389 states and 469 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:28,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:28,101 INFO L93 Difference]: Finished difference Result 799 states and 969 transitions. [2024-10-14 13:32:28,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:32:28,101 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-10-14 13:32:28,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:28,104 INFO L225 Difference]: With dead ends: 799 [2024-10-14 13:32:28,104 INFO L226 Difference]: Without dead ends: 533 [2024-10-14 13:32:28,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:32:28,106 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 61 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:28,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 453 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:32:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-10-14 13:32:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 389. [2024-10-14 13:32:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 312 states have (on average 1.1634615384615385) internal successors, (363), 314 states have internal predecessors, (363), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 467 transitions. [2024-10-14 13:32:28,204 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 467 transitions. Word has length 124 [2024-10-14 13:32:28,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:28,205 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 467 transitions. [2024-10-14 13:32:28,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 467 transitions. [2024-10-14 13:32:28,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:28,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:28,206 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:28,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 13:32:28,207 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:28,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:28,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1787719049, now seen corresponding path program 1 times [2024-10-14 13:32:28,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:28,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826708072] [2024-10-14 13:32:28,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:28,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:29,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826708072] [2024-10-14 13:32:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826708072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:29,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:29,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:32:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818842001] [2024-10-14 13:32:29,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:29,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:32:29,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:32:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:32:29,186 INFO L87 Difference]: Start difference. First operand 389 states and 467 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:29,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:29,888 INFO L93 Difference]: Finished difference Result 763 states and 922 transitions. [2024-10-14 13:32:29,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:32:29,889 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 13:32:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:29,891 INFO L225 Difference]: With dead ends: 763 [2024-10-14 13:32:29,892 INFO L226 Difference]: Without dead ends: 497 [2024-10-14 13:32:29,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:32:29,894 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 306 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:29,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 645 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:32:29,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-10-14 13:32:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 415. [2024-10-14 13:32:29,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 338 states have (on average 1.165680473372781) internal successors, (394), 340 states have internal predecessors, (394), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:29,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 498 transitions. [2024-10-14 13:32:29,999 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 498 transitions. Word has length 124 [2024-10-14 13:32:30,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:30,000 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 498 transitions. [2024-10-14 13:32:30,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 498 transitions. [2024-10-14 13:32:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:30,001 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:30,001 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:30,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 13:32:30,001 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:30,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:30,002 INFO L85 PathProgramCache]: Analyzing trace with hash -117358722, now seen corresponding path program 1 times [2024-10-14 13:32:30,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:30,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839088566] [2024-10-14 13:32:30,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:30,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:30,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:30,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839088566] [2024-10-14 13:32:30,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839088566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:30,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:30,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:32:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906122957] [2024-10-14 13:32:30,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:30,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:32:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:30,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:32:30,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:32:30,333 INFO L87 Difference]: Start difference. First operand 415 states and 498 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:30,732 INFO L93 Difference]: Finished difference Result 772 states and 930 transitions. [2024-10-14 13:32:30,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:32:30,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-10-14 13:32:30,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:30,735 INFO L225 Difference]: With dead ends: 772 [2024-10-14 13:32:30,736 INFO L226 Difference]: Without dead ends: 480 [2024-10-14 13:32:30,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:32:30,737 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 60 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:30,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 455 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 13:32:30,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-10-14 13:32:30,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 415. [2024-10-14 13:32:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 338 states have (on average 1.1597633136094674) internal successors, (392), 340 states have internal predecessors, (392), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:30,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 496 transitions. [2024-10-14 13:32:30,844 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 496 transitions. Word has length 124 [2024-10-14 13:32:30,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:30,844 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 496 transitions. [2024-10-14 13:32:30,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 496 transitions. [2024-10-14 13:32:30,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:30,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:30,846 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:30,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 13:32:30,846 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:30,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:30,847 INFO L85 PathProgramCache]: Analyzing trace with hash 562699648, now seen corresponding path program 1 times [2024-10-14 13:32:30,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:30,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053682771] [2024-10-14 13:32:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:30,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:32,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:32,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053682771] [2024-10-14 13:32:32,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053682771] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:32,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-14 13:32:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712802386] [2024-10-14 13:32:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:32,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 13:32:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 13:32:32,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:32:32,216 INFO L87 Difference]: Start difference. First operand 415 states and 496 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:33,770 INFO L93 Difference]: Finished difference Result 923 states and 1110 transitions. [2024-10-14 13:32:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 13:32:33,771 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2024-10-14 13:32:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:33,775 INFO L225 Difference]: With dead ends: 923 [2024-10-14 13:32:33,776 INFO L226 Difference]: Without dead ends: 631 [2024-10-14 13:32:33,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 13:32:33,777 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 263 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:33,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1425 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:32:33,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-10-14 13:32:33,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 454. [2024-10-14 13:32:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 377 states have (on average 1.1830238726790452) internal successors, (446), 379 states have internal predecessors, (446), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 550 transitions. [2024-10-14 13:32:33,896 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 550 transitions. Word has length 124 [2024-10-14 13:32:33,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:33,897 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 550 transitions. [2024-10-14 13:32:33,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 550 transitions. [2024-10-14 13:32:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:33,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:33,899 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:33,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 13:32:33,900 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:33,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:33,900 INFO L85 PathProgramCache]: Analyzing trace with hash 864966828, now seen corresponding path program 1 times [2024-10-14 13:32:33,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:33,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989499111] [2024-10-14 13:32:33,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:33,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:34,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:34,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989499111] [2024-10-14 13:32:34,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989499111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:34,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:34,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 13:32:34,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773080913] [2024-10-14 13:32:34,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:34,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 13:32:34,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:34,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 13:32:34,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:32:34,299 INFO L87 Difference]: Start difference. First operand 454 states and 550 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:34,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:34,675 INFO L93 Difference]: Finished difference Result 786 states and 961 transitions. [2024-10-14 13:32:34,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 13:32:34,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 13:32:34,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:34,678 INFO L225 Difference]: With dead ends: 786 [2024-10-14 13:32:34,678 INFO L226 Difference]: Without dead ends: 455 [2024-10-14 13:32:34,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-14 13:32:34,680 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 114 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:34,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 315 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:32:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-10-14 13:32:34,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 454. [2024-10-14 13:32:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 377 states have (on average 1.1803713527851458) internal successors, (445), 379 states have internal predecessors, (445), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 549 transitions. [2024-10-14 13:32:34,807 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 549 transitions. Word has length 124 [2024-10-14 13:32:34,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:34,808 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 549 transitions. [2024-10-14 13:32:34,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:34,808 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 549 transitions. [2024-10-14 13:32:34,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:34,809 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:34,809 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:34,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 13:32:34,809 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:34,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash -940471506, now seen corresponding path program 1 times [2024-10-14 13:32:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:34,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111714497] [2024-10-14 13:32:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:36,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:36,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111714497] [2024-10-14 13:32:36,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111714497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:36,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:36,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-14 13:32:36,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855186470] [2024-10-14 13:32:36,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:36,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 13:32:36,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:36,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 13:32:36,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:32:36,083 INFO L87 Difference]: Start difference. First operand 454 states and 549 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:37,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:37,621 INFO L93 Difference]: Finished difference Result 1007 states and 1222 transitions. [2024-10-14 13:32:37,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 13:32:37,622 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2024-10-14 13:32:37,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:37,625 INFO L225 Difference]: With dead ends: 1007 [2024-10-14 13:32:37,625 INFO L226 Difference]: Without dead ends: 676 [2024-10-14 13:32:37,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 13:32:37,626 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 160 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:37,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 1531 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 13:32:37,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-10-14 13:32:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 491. [2024-10-14 13:32:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 414 states have (on average 1.2004830917874396) internal successors, (497), 416 states have internal predecessors, (497), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 601 transitions. [2024-10-14 13:32:37,741 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 601 transitions. Word has length 124 [2024-10-14 13:32:37,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:37,741 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 601 transitions. [2024-10-14 13:32:37,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 601 transitions. [2024-10-14 13:32:37,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:37,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:37,743 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:37,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 13:32:37,743 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:37,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:37,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1409947191, now seen corresponding path program 1 times [2024-10-14 13:32:37,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:37,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782089315] [2024-10-14 13:32:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:37,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:38,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:38,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782089315] [2024-10-14 13:32:38,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782089315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:38,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:38,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:32:38,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396806926] [2024-10-14 13:32:38,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:38,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:32:38,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:38,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:32:38,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:32:38,657 INFO L87 Difference]: Start difference. First operand 491 states and 601 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:39,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:39,311 INFO L93 Difference]: Finished difference Result 938 states and 1152 transitions. [2024-10-14 13:32:39,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:32:39,312 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 13:32:39,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:39,315 INFO L225 Difference]: With dead ends: 938 [2024-10-14 13:32:39,315 INFO L226 Difference]: Without dead ends: 570 [2024-10-14 13:32:39,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:32:39,317 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 268 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:39,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 624 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 13:32:39,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-10-14 13:32:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 493. [2024-10-14 13:32:39,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 416 states have (on average 1.1995192307692308) internal successors, (499), 418 states have internal predecessors, (499), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 603 transitions. [2024-10-14 13:32:39,438 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 603 transitions. Word has length 124 [2024-10-14 13:32:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:39,438 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 603 transitions. [2024-10-14 13:32:39,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 603 transitions. [2024-10-14 13:32:39,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:39,440 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:39,440 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:39,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 13:32:39,440 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:39,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:39,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1503952273, now seen corresponding path program 1 times [2024-10-14 13:32:39,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:39,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322929069] [2024-10-14 13:32:39,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:40,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:40,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:40,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322929069] [2024-10-14 13:32:40,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322929069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:40,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:40,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:32:40,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942047775] [2024-10-14 13:32:40,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:40,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:32:40,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:40,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:32:40,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:32:40,212 INFO L87 Difference]: Start difference. First operand 493 states and 603 transitions. Second operand has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:41,045 INFO L93 Difference]: Finished difference Result 1060 states and 1297 transitions. [2024-10-14 13:32:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 13:32:41,046 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 13:32:41,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:41,050 INFO L225 Difference]: With dead ends: 1060 [2024-10-14 13:32:41,050 INFO L226 Difference]: Without dead ends: 690 [2024-10-14 13:32:41,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-10-14 13:32:41,052 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 155 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:41,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 794 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:32:41,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-10-14 13:32:41,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 517. [2024-10-14 13:32:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 440 states have (on average 1.1954545454545455) internal successors, (526), 442 states have internal predecessors, (526), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:41,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 630 transitions. [2024-10-14 13:32:41,198 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 630 transitions. Word has length 124 [2024-10-14 13:32:41,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:41,199 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 630 transitions. [2024-10-14 13:32:41,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 12 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 630 transitions. [2024-10-14 13:32:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:41,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:41,201 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:41,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 13:32:41,201 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:41,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash 846466424, now seen corresponding path program 1 times [2024-10-14 13:32:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115411142] [2024-10-14 13:32:41,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:41,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:42,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:42,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115411142] [2024-10-14 13:32:42,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115411142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:42,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:42,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-10-14 13:32:42,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18520111] [2024-10-14 13:32:42,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:42,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-14 13:32:42,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:42,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-14 13:32:42,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:32:42,287 INFO L87 Difference]: Start difference. First operand 517 states and 630 transitions. Second operand has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:43,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:43,653 INFO L93 Difference]: Finished difference Result 1017 states and 1243 transitions. [2024-10-14 13:32:43,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-14 13:32:43,656 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2024-10-14 13:32:43,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:43,659 INFO L225 Difference]: With dead ends: 1017 [2024-10-14 13:32:43,659 INFO L226 Difference]: Without dead ends: 623 [2024-10-14 13:32:43,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=1155, Unknown=0, NotChecked=0, Total=1332 [2024-10-14 13:32:43,661 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 232 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1548 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:43,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 1548 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 13:32:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-10-14 13:32:43,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 519. [2024-10-14 13:32:43,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 442 states have (on average 1.1990950226244343) internal successors, (530), 444 states have internal predecessors, (530), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 634 transitions. [2024-10-14 13:32:43,793 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 634 transitions. Word has length 124 [2024-10-14 13:32:43,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:43,793 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 634 transitions. [2024-10-14 13:32:43,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.473684210526316) internal successors, (47), 20 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:43,793 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 634 transitions. [2024-10-14 13:32:43,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:43,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:43,795 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:43,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 13:32:43,795 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:43,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:43,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1526524794, now seen corresponding path program 1 times [2024-10-14 13:32:43,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:43,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759968597] [2024-10-14 13:32:43,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:44,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:44,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759968597] [2024-10-14 13:32:44,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759968597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:44,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:44,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:32:44,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286561188] [2024-10-14 13:32:44,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:44,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:32:44,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:44,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:32:44,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:32:44,098 INFO L87 Difference]: Start difference. First operand 519 states and 634 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:44,415 INFO L93 Difference]: Finished difference Result 1064 states and 1298 transitions. [2024-10-14 13:32:44,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:32:44,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-10-14 13:32:44,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:44,419 INFO L225 Difference]: With dead ends: 1064 [2024-10-14 13:32:44,419 INFO L226 Difference]: Without dead ends: 668 [2024-10-14 13:32:44,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:32:44,420 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 61 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:44,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 612 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:32:44,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-10-14 13:32:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 503. [2024-10-14 13:32:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 426 states have (on average 1.1830985915492958) internal successors, (504), 428 states have internal predecessors, (504), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 608 transitions. [2024-10-14 13:32:44,543 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 608 transitions. Word has length 124 [2024-10-14 13:32:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:44,544 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 608 transitions. [2024-10-14 13:32:44,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 608 transitions. [2024-10-14 13:32:44,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:44,545 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:44,545 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:44,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 13:32:44,545 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:44,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:44,546 INFO L85 PathProgramCache]: Analyzing trace with hash -122829325, now seen corresponding path program 1 times [2024-10-14 13:32:44,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:44,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930230206] [2024-10-14 13:32:44,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:44,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:45,591 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:45,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:45,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930230206] [2024-10-14 13:32:45,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930230206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:45,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:45,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 13:32:45,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139741424] [2024-10-14 13:32:45,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:45,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 13:32:45,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 13:32:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 13:32:45,595 INFO L87 Difference]: Start difference. First operand 503 states and 608 transitions. Second operand has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:46,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:46,552 INFO L93 Difference]: Finished difference Result 975 states and 1181 transitions. [2024-10-14 13:32:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 13:32:46,553 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 13:32:46,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:46,556 INFO L225 Difference]: With dead ends: 975 [2024-10-14 13:32:46,556 INFO L226 Difference]: Without dead ends: 595 [2024-10-14 13:32:46,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-10-14 13:32:46,558 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 199 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:46,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 893 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 13:32:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-10-14 13:32:46,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 503. [2024-10-14 13:32:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 426 states have (on average 1.1784037558685445) internal successors, (502), 428 states have internal predecessors, (502), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 606 transitions. [2024-10-14 13:32:46,696 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 606 transitions. Word has length 124 [2024-10-14 13:32:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:46,696 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 606 transitions. [2024-10-14 13:32:46,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 13 states have internal predecessors, (47), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 13:32:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 606 transitions. [2024-10-14 13:32:46,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:46,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:46,701 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:46,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 13:32:46,701 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:46,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:46,702 INFO L85 PathProgramCache]: Analyzing trace with hash -2067377924, now seen corresponding path program 1 times [2024-10-14 13:32:46,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:46,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509083190] [2024-10-14 13:32:46,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:46,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:47,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:47,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509083190] [2024-10-14 13:32:47,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509083190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:47,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:47,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 13:32:47,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909001897] [2024-10-14 13:32:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:47,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 13:32:47,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:47,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 13:32:47,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-14 13:32:47,700 INFO L87 Difference]: Start difference. First operand 503 states and 606 transitions. Second operand has 12 states, 10 states have (on average 4.7) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:48,441 INFO L93 Difference]: Finished difference Result 1016 states and 1220 transitions. [2024-10-14 13:32:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 13:32:48,442 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2024-10-14 13:32:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:48,445 INFO L225 Difference]: With dead ends: 1016 [2024-10-14 13:32:48,445 INFO L226 Difference]: Without dead ends: 636 [2024-10-14 13:32:48,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-14 13:32:48,446 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 151 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:48,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 836 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 13:32:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-10-14 13:32:48,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 493. [2024-10-14 13:32:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 416 states have (on average 1.1538461538461537) internal successors, (480), 418 states have internal predecessors, (480), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 584 transitions. [2024-10-14 13:32:48,609 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 584 transitions. Word has length 124 [2024-10-14 13:32:48,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:48,609 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 584 transitions. [2024-10-14 13:32:48,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.7) internal successors, (47), 12 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:48,610 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 584 transitions. [2024-10-14 13:32:48,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:48,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:48,612 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:48,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 13:32:48,612 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:48,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:48,613 INFO L85 PathProgramCache]: Analyzing trace with hash -958971910, now seen corresponding path program 1 times [2024-10-14 13:32:48,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:48,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752207512] [2024-10-14 13:32:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:48,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:48,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:48,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752207512] [2024-10-14 13:32:48,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752207512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:48,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:48,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 13:32:48,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460087153] [2024-10-14 13:32:48,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:48,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 13:32:48,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:48,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 13:32:48,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 13:32:48,798 INFO L87 Difference]: Start difference. First operand 493 states and 584 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:48,982 INFO L93 Difference]: Finished difference Result 836 states and 996 transitions. [2024-10-14 13:32:48,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 13:32:48,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-10-14 13:32:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:48,985 INFO L225 Difference]: With dead ends: 836 [2024-10-14 13:32:48,985 INFO L226 Difference]: Without dead ends: 466 [2024-10-14 13:32:48,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:32:48,986 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 7 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:48,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 376 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 13:32:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-10-14 13:32:49,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2024-10-14 13:32:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 389 states have (on average 1.1491002570694087) internal successors, (447), 391 states have internal predecessors, (447), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:49,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 551 transitions. [2024-10-14 13:32:49,108 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 551 transitions. Word has length 124 [2024-10-14 13:32:49,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:49,108 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 551 transitions. [2024-10-14 13:32:49,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:49,108 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 551 transitions. [2024-10-14 13:32:49,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:49,109 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:49,109 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:49,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 13:32:49,110 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:49,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash -656704730, now seen corresponding path program 1 times [2024-10-14 13:32:49,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:49,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438506436] [2024-10-14 13:32:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:50,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:50,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:50,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438506436] [2024-10-14 13:32:50,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438506436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:50,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:50,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-14 13:32:50,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329628321] [2024-10-14 13:32:50,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:50,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 13:32:50,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:50,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 13:32:50,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-10-14 13:32:50,680 INFO L87 Difference]: Start difference. First operand 466 states and 551 transitions. Second operand has 21 states, 20 states have (on average 2.35) internal successors, (47), 21 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:52,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:52,675 INFO L93 Difference]: Finished difference Result 909 states and 1075 transitions. [2024-10-14 13:32:52,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-14 13:32:52,676 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.35) internal successors, (47), 21 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 124 [2024-10-14 13:32:52,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:52,678 INFO L225 Difference]: With dead ends: 909 [2024-10-14 13:32:52,678 INFO L226 Difference]: Without dead ends: 566 [2024-10-14 13:32:52,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=184, Invalid=1298, Unknown=0, NotChecked=0, Total=1482 [2024-10-14 13:32:52,679 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 152 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:52,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1648 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 13:32:52,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-10-14 13:32:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 466. [2024-10-14 13:32:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 389 states have (on average 1.1491002570694087) internal successors, (447), 391 states have internal predecessors, (447), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:52,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 551 transitions. [2024-10-14 13:32:52,799 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 551 transitions. Word has length 124 [2024-10-14 13:32:52,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:52,800 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 551 transitions. [2024-10-14 13:32:52,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.35) internal successors, (47), 21 states have internal predecessors, (47), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 13:32:52,800 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 551 transitions. [2024-10-14 13:32:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:52,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:52,801 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:52,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 13:32:52,802 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:52,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash 23353640, now seen corresponding path program 1 times [2024-10-14 13:32:52,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:52,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180610010] [2024-10-14 13:32:52,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:52,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 13:32:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 13:32:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 13:32:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 13:32:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 13:32:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 13:32:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 13:32:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 13:32:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 13:32:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 13:32:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 13:32:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 13:32:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 13:32:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 13:32:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 13:32:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 13:32:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 13:32:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-14 13:32:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 13:32:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180610010] [2024-10-14 13:32:53,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180610010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 13:32:53,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 13:32:53,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 13:32:53,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178545570] [2024-10-14 13:32:53,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 13:32:53,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 13:32:53,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 13:32:53,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 13:32:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 13:32:53,072 INFO L87 Difference]: Start difference. First operand 466 states and 551 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 13:32:53,423 INFO L93 Difference]: Finished difference Result 885 states and 1047 transitions. [2024-10-14 13:32:53,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 13:32:53,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-10-14 13:32:53,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 13:32:53,426 INFO L225 Difference]: With dead ends: 885 [2024-10-14 13:32:53,426 INFO L226 Difference]: Without dead ends: 542 [2024-10-14 13:32:53,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 13:32:53,427 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 60 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 13:32:53,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 599 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 13:32:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-10-14 13:32:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 466. [2024-10-14 13:32:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 389 states have (on average 1.1388174807197944) internal successors, (443), 391 states have internal predecessors, (443), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 50 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 13:32:53,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 547 transitions. [2024-10-14 13:32:53,545 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 547 transitions. Word has length 124 [2024-10-14 13:32:53,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 13:32:53,545 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 547 transitions. [2024-10-14 13:32:53,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-14 13:32:53,545 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 547 transitions. [2024-10-14 13:32:53,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 13:32:53,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 13:32:53,547 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 13:32:53,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 13:32:53,547 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 13:32:53,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 13:32:53,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1693713967, now seen corresponding path program 1 times [2024-10-14 13:32:53,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 13:32:53,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448774798] [2024-10-14 13:32:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 13:32:53,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 13:32:53,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat