./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 13:56:05,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 13:56:05,561 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 13:56:05,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 13:56:05,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 13:56:05,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 13:56:05,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 13:56:05,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 13:56:05,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 13:56:05,593 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 13:56:05,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 13:56:05,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 13:56:05,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 13:56:05,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 13:56:05,595 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 13:56:05,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 13:56:05,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 13:56:05,596 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 13:56:05,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 13:56:05,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 13:56:05,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 13:56:05,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 13:56:05,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 13:56:05,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 13:56:05,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 13:56:05,601 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 13:56:05,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 13:56:05,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 13:56:05,602 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 13:56:05,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 13:56:05,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 13:56:05,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 13:56:05,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 13:56:05,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 13:56:05,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 13:56:05,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 13:56:05,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 13:56:05,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 13:56:05,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 13:56:05,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 13:56:05,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 13:56:05,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 13:56:05,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-11-10 13:56:05,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 13:56:05,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 13:56:05,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 13:56:05,824 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 13:56:05,825 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 13:56:05,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2024-11-10 13:56:07,140 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 13:56:07,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 13:56:07,391 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2024-11-10 13:56:07,417 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f83f14563/7718153b343a463a986be01d44401bb3/FLAG3379f7f5e [2024-11-10 13:56:07,715 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f83f14563/7718153b343a463a986be01d44401bb3 [2024-11-10 13:56:07,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 13:56:07,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 13:56:07,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 13:56:07,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 13:56:07,724 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 13:56:07,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:07" (1/1) ... [2024-11-10 13:56:07,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70af1ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:07, skipping insertion in model container [2024-11-10 13:56:07,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:56:07" (1/1) ... [2024-11-10 13:56:07,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 13:56:08,107 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i[33519,33532] [2024-11-10 13:56:08,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 13:56:08,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 13:56:08,243 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i[33519,33532] [2024-11-10 13:56:08,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 13:56:08,321 INFO L204 MainTranslator]: Completed translation [2024-11-10 13:56:08,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08 WrapperNode [2024-11-10 13:56:08,322 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 13:56:08,323 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 13:56:08,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 13:56:08,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 13:56:08,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,405 INFO L138 Inliner]: procedures = 176, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1515 [2024-11-10 13:56:08,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 13:56:08,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 13:56:08,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 13:56:08,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 13:56:08,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,486 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-11-10 13:56:08,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,513 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,525 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 13:56:08,540 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 13:56:08,540 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 13:56:08,540 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 13:56:08,541 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (1/1) ... [2024-11-10 13:56:08,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 13:56:08,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:08,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 13:56:08,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 13:56:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 13:56:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 13:56:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 13:56:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 13:56:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-10 13:56:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-10 13:56:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-10 13:56:08,623 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-10 13:56:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 13:56:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 13:56:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 13:56:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 13:56:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 13:56:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 13:56:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 13:56:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 13:56:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 13:56:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 13:56:08,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 13:56:08,827 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 13:56:08,829 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 13:56:10,093 INFO L? ?]: Removed 377 outVars from TransFormulas that were not future-live. [2024-11-10 13:56:10,094 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 13:56:10,180 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 13:56:10,180 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-10 13:56:10,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:56:10 BoogieIcfgContainer [2024-11-10 13:56:10,181 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 13:56:10,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 13:56:10,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 13:56:10,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 13:56:10,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:56:07" (1/3) ... [2024-11-10 13:56:10,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494a245c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:10, skipping insertion in model container [2024-11-10 13:56:10,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:56:08" (2/3) ... [2024-11-10 13:56:10,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494a245c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:56:10, skipping insertion in model container [2024-11-10 13:56:10,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:56:10" (3/3) ... [2024-11-10 13:56:10,190 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-1.i [2024-11-10 13:56:10,207 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 13:56:10,208 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 13:56:10,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 13:56:10,281 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cf8e9fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 13:56:10,282 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 13:56:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 400 states have (on average 1.605) internal successors, (642), 401 states have internal predecessors, (642), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 13:56:10,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 13:56:10,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:10,293 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:10,293 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:10,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1111828091, now seen corresponding path program 1 times [2024-11-10 13:56:10,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:10,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524848643] [2024-11-10 13:56:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:10,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:10,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524848643] [2024-11-10 13:56:10,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524848643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:10,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:10,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 13:56:10,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595406416] [2024-11-10 13:56:10,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:10,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 13:56:10,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:10,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 13:56:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 13:56:10,544 INFO L87 Difference]: Start difference. First operand has 409 states, 400 states have (on average 1.605) internal successors, (642), 401 states have internal predecessors, (642), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 13:56:10,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:10,655 INFO L93 Difference]: Finished difference Result 815 states and 1304 transitions. [2024-11-10 13:56:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 13:56:10,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-10 13:56:10,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:10,666 INFO L225 Difference]: With dead ends: 815 [2024-11-10 13:56:10,667 INFO L226 Difference]: Without dead ends: 405 [2024-11-10 13:56:10,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 13:56:10,673 INFO L432 NwaCegarLoop]: 542 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:10,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 542 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 13:56:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-10 13:56:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-10 13:56:10,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 397 states have (on average 1.433249370277078) internal successors, (569), 397 states have internal predecessors, (569), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-10 13:56:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 581 transitions. [2024-11-10 13:56:10,724 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 581 transitions. Word has length 11 [2024-11-10 13:56:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:10,724 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 581 transitions. [2024-11-10 13:56:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 13:56:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 581 transitions. [2024-11-10 13:56:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-10 13:56:10,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:10,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:10,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 13:56:10,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:10,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash -62893775, now seen corresponding path program 1 times [2024-11-10 13:56:10,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:10,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383958605] [2024-11-10 13:56:10,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:10,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 13:56:10,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:10,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383958605] [2024-11-10 13:56:10,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383958605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:10,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:10,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 13:56:10,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791257608] [2024-11-10 13:56:10,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:10,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 13:56:10,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:10,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 13:56:10,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:10,855 INFO L87 Difference]: Start difference. First operand 405 states and 581 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 13:56:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:11,265 INFO L93 Difference]: Finished difference Result 1134 states and 1641 transitions. [2024-11-10 13:56:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 13:56:11,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-10 13:56:11,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:11,269 INFO L225 Difference]: With dead ends: 1134 [2024-11-10 13:56:11,270 INFO L226 Difference]: Without dead ends: 729 [2024-11-10 13:56:11,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:11,273 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 469 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:11,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 1535 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 13:56:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-10 13:56:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2024-11-10 13:56:11,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.448467966573816) internal successors, (1040), 718 states have internal predecessors, (1040), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:11,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1058 transitions. [2024-11-10 13:56:11,307 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1058 transitions. Word has length 12 [2024-11-10 13:56:11,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:11,307 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1058 transitions. [2024-11-10 13:56:11,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 13:56:11,307 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1058 transitions. [2024-11-10 13:56:11,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-10 13:56:11,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:11,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:11,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 13:56:11,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:11,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1314113807, now seen corresponding path program 1 times [2024-11-10 13:56:11,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:11,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039275983] [2024-11-10 13:56:11,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:11,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:11,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-10 13:56:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-10 13:56:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:11,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:11,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039275983] [2024-11-10 13:56:11,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039275983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:11,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:11,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 13:56:11,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852686194] [2024-11-10 13:56:11,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:11,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 13:56:11,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 13:56:11,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 13:56:11,899 INFO L87 Difference]: Start difference. First operand 729 states and 1058 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 13:56:12,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:12,352 INFO L93 Difference]: Finished difference Result 1405 states and 2043 transitions. [2024-11-10 13:56:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 13:56:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 176 [2024-11-10 13:56:12,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:12,358 INFO L225 Difference]: With dead ends: 1405 [2024-11-10 13:56:12,358 INFO L226 Difference]: Without dead ends: 738 [2024-11-10 13:56:12,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 13:56:12,362 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 108 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:12,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1848 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 13:56:12,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-10 13:56:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 729. [2024-11-10 13:56:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.4289693593314763) internal successors, (1026), 718 states have internal predecessors, (1026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1044 transitions. [2024-11-10 13:56:12,396 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1044 transitions. Word has length 176 [2024-11-10 13:56:12,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:12,397 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1044 transitions. [2024-11-10 13:56:12,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 13:56:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1044 transitions. [2024-11-10 13:56:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-10 13:56:12,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:12,402 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:12,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 13:56:12,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:12,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1426646648, now seen corresponding path program 1 times [2024-11-10 13:56:12,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:12,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993738660] [2024-11-10 13:56:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:12,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:12,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-10 13:56:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:12,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-10 13:56:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 13:56:12,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:12,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993738660] [2024-11-10 13:56:12,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993738660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:12,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:12,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 13:56:12,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928416666] [2024-11-10 13:56:12,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:12,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 13:56:12,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:12,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 13:56:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:12,634 INFO L87 Difference]: Start difference. First operand 729 states and 1044 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 13:56:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:13,238 INFO L93 Difference]: Finished difference Result 1315 states and 1892 transitions. [2024-11-10 13:56:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 13:56:13,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 176 [2024-11-10 13:56:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:13,244 INFO L225 Difference]: With dead ends: 1315 [2024-11-10 13:56:13,244 INFO L226 Difference]: Without dead ends: 730 [2024-11-10 13:56:13,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:13,248 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 137 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:13,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1477 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 13:56:13,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-10 13:56:13,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 727. [2024-11-10 13:56:13,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 716 states have (on average 1.4287709497206704) internal successors, (1023), 716 states have internal predecessors, (1023), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:13,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1041 transitions. [2024-11-10 13:56:13,275 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1041 transitions. Word has length 176 [2024-11-10 13:56:13,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:13,275 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1041 transitions. [2024-11-10 13:56:13,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 3 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-10 13:56:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1041 transitions. [2024-11-10 13:56:13,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-10 13:56:13,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:13,279 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:13,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 13:56:13,280 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:13,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1811520339, now seen corresponding path program 1 times [2024-11-10 13:56:13,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:13,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898932989] [2024-11-10 13:56:13,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:13,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:13,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 13:56:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:13,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 13:56:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:13,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 13:56:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:13,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 13:56:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 13:56:13,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:13,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898932989] [2024-11-10 13:56:13,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898932989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:13,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:13,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 13:56:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974183319] [2024-11-10 13:56:13,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:13,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 13:56:13,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:13,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 13:56:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 13:56:13,582 INFO L87 Difference]: Start difference. First operand 727 states and 1041 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:14,031 INFO L93 Difference]: Finished difference Result 1211 states and 1740 transitions. [2024-11-10 13:56:14,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 13:56:14,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 191 [2024-11-10 13:56:14,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:14,034 INFO L225 Difference]: With dead ends: 1211 [2024-11-10 13:56:14,034 INFO L226 Difference]: Without dead ends: 736 [2024-11-10 13:56:14,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 13:56:14,038 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 108 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1827 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:14,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1827 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 13:56:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-10 13:56:14,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 727. [2024-11-10 13:56:14,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 716 states have (on average 1.4092178770949721) internal successors, (1009), 716 states have internal predecessors, (1009), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1027 transitions. [2024-11-10 13:56:14,060 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1027 transitions. Word has length 191 [2024-11-10 13:56:14,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:14,060 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1027 transitions. [2024-11-10 13:56:14,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1027 transitions. [2024-11-10 13:56:14,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-10 13:56:14,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:14,065 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:14,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 13:56:14,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:14,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:14,066 INFO L85 PathProgramCache]: Analyzing trace with hash -120962252, now seen corresponding path program 1 times [2024-11-10 13:56:14,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:14,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011765262] [2024-11-10 13:56:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:14,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 13:56:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:14,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 13:56:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:14,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 13:56:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:14,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 13:56:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 13:56:14,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011765262] [2024-11-10 13:56:14,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011765262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:14,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078721899] [2024-11-10 13:56:14,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:14,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:14,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:14,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:14,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 13:56:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:15,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-10 13:56:15,441 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:15,488 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 16 treesize of output 17 [2024-11-10 13:56:16,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 13:56:16,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 58 [2024-11-10 13:56:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 13:56:16,230 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 13:56:16,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078721899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:16,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 13:56:16,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-10 13:56:16,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582474933] [2024-11-10 13:56:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:16,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 13:56:16,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 13:56:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-10 13:56:16,233 INFO L87 Difference]: Start difference. First operand 727 states and 1027 transitions. Second operand has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:17,859 INFO L93 Difference]: Finished difference Result 1481 states and 2081 transitions. [2024-11-10 13:56:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 13:56:17,859 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2024-11-10 13:56:17,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:17,862 INFO L225 Difference]: With dead ends: 1481 [2024-11-10 13:56:17,864 INFO L226 Difference]: Without dead ends: 842 [2024-11-10 13:56:17,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-10 13:56:17,866 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 829 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:17,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 2867 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 13:56:17,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-10 13:56:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 758. [2024-11-10 13:56:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 747 states have (on average 1.4016064257028114) internal successors, (1047), 747 states have internal predecessors, (1047), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:17,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1065 transitions. [2024-11-10 13:56:17,887 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1065 transitions. Word has length 191 [2024-11-10 13:56:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:17,888 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 1065 transitions. [2024-11-10 13:56:17,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 11 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1065 transitions. [2024-11-10 13:56:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-10 13:56:17,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:17,890 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:17,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 13:56:18,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-10 13:56:18,092 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:18,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash 164173651, now seen corresponding path program 1 times [2024-11-10 13:56:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:18,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821360582] [2024-11-10 13:56:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 13:56:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 13:56:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 13:56:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 13:56:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,289 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 13:56:18,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:18,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821360582] [2024-11-10 13:56:18,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821360582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:18,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:18,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 13:56:18,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354310570] [2024-11-10 13:56:18,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:18,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 13:56:18,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:18,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 13:56:18,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:18,294 INFO L87 Difference]: Start difference. First operand 758 states and 1065 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:18,626 INFO L93 Difference]: Finished difference Result 1435 states and 2032 transitions. [2024-11-10 13:56:18,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 13:56:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2024-11-10 13:56:18,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:18,630 INFO L225 Difference]: With dead ends: 1435 [2024-11-10 13:56:18,630 INFO L226 Difference]: Without dead ends: 777 [2024-11-10 13:56:18,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 13:56:18,632 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 5 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:18,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1436 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 13:56:18,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-10 13:56:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 772. [2024-11-10 13:56:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 761 states have (on average 1.3915900131406045) internal successors, (1059), 761 states have internal predecessors, (1059), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:18,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1077 transitions. [2024-11-10 13:56:18,675 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1077 transitions. Word has length 191 [2024-11-10 13:56:18,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:18,675 INFO L471 AbstractCegarLoop]: Abstraction has 772 states and 1077 transitions. [2024-11-10 13:56:18,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 3 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:18,676 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1077 transitions. [2024-11-10 13:56:18,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-10 13:56:18,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:18,677 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:18,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 13:56:18,678 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:18,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:18,679 INFO L85 PathProgramCache]: Analyzing trace with hash -698130510, now seen corresponding path program 1 times [2024-11-10 13:56:18,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:18,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457073375] [2024-11-10 13:56:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:18,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-10 13:56:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 13:56:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 13:56:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 13:56:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 13:56:18,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457073375] [2024-11-10 13:56:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457073375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:18,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:18,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 13:56:18,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788548830] [2024-11-10 13:56:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:18,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 13:56:18,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 13:56:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 13:56:18,876 INFO L87 Difference]: Start difference. First operand 772 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:19,517 INFO L93 Difference]: Finished difference Result 1376 states and 1927 transitions. [2024-11-10 13:56:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 13:56:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2024-11-10 13:56:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:19,523 INFO L225 Difference]: With dead ends: 1376 [2024-11-10 13:56:19,523 INFO L226 Difference]: Without dead ends: 634 [2024-11-10 13:56:19,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 13:56:19,525 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 12 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:19,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1632 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 13:56:19,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-10 13:56:19,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 631. [2024-11-10 13:56:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 620 states have (on average 1.367741935483871) internal successors, (848), 620 states have internal predecessors, (848), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 866 transitions. [2024-11-10 13:56:19,543 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 866 transitions. Word has length 191 [2024-11-10 13:56:19,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:19,544 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 866 transitions. [2024-11-10 13:56:19,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:19,545 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 866 transitions. [2024-11-10 13:56:19,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-10 13:56:19,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:19,546 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:19,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 13:56:19,546 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:19,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:19,547 INFO L85 PathProgramCache]: Analyzing trace with hash -2029944899, now seen corresponding path program 1 times [2024-11-10 13:56:19,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:19,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298950365] [2024-11-10 13:56:19,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:19,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 13:56:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 13:56:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-10 13:56:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-10 13:56:20,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 13:56:20,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:20,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298950365] [2024-11-10 13:56:20,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298950365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:20,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481244004] [2024-11-10 13:56:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:20,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:20,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:20,333 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:20,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 13:56:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:20,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 13:56:20,751 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 13:56:20,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 13:56:20,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481244004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:20,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 13:56:20,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-10 13:56:20,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499435368] [2024-11-10 13:56:20,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:20,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 13:56:20,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:20,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 13:56:20,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:20,808 INFO L87 Difference]: Start difference. First operand 631 states and 866 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:20,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:20,970 INFO L93 Difference]: Finished difference Result 1222 states and 1690 transitions. [2024-11-10 13:56:20,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 13:56:20,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2024-11-10 13:56:20,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:20,973 INFO L225 Difference]: With dead ends: 1222 [2024-11-10 13:56:20,973 INFO L226 Difference]: Without dead ends: 631 [2024-11-10 13:56:20,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:20,981 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 13 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:20,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1216 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 13:56:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-10 13:56:20,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2024-11-10 13:56:21,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 620 states have (on average 1.364516129032258) internal successors, (846), 620 states have internal predecessors, (846), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 864 transitions. [2024-11-10 13:56:21,002 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 864 transitions. Word has length 192 [2024-11-10 13:56:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:21,003 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 864 transitions. [2024-11-10 13:56:21,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 864 transitions. [2024-11-10 13:56:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-10 13:56:21,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:21,005 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:21,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 13:56:21,205 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,SelfDestructingSolverStorable8 [2024-11-10 13:56:21,206 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:21,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:21,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1350411863, now seen corresponding path program 1 times [2024-11-10 13:56:21,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:21,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432960986] [2024-11-10 13:56:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:21,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:21,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-10 13:56:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:21,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-10 13:56:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:21,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-10 13:56:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:21,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-10 13:56:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:21,610 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-10 13:56:21,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:21,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432960986] [2024-11-10 13:56:21,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432960986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:21,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:21,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 13:56:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921753620] [2024-11-10 13:56:21,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:21,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 13:56:21,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 13:56:21,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:21,617 INFO L87 Difference]: Start difference. First operand 631 states and 864 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:22,167 INFO L93 Difference]: Finished difference Result 1228 states and 1704 transitions. [2024-11-10 13:56:22,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 13:56:22,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 193 [2024-11-10 13:56:22,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:22,170 INFO L225 Difference]: With dead ends: 1228 [2024-11-10 13:56:22,170 INFO L226 Difference]: Without dead ends: 640 [2024-11-10 13:56:22,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:22,171 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 7 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:22,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2296 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 13:56:22,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-10 13:56:22,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 637. [2024-11-10 13:56:22,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 626 states have (on average 1.3610223642172523) internal successors, (852), 626 states have internal predecessors, (852), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-10 13:56:22,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 870 transitions. [2024-11-10 13:56:22,189 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 870 transitions. Word has length 193 [2024-11-10 13:56:22,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:22,189 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 870 transitions. [2024-11-10 13:56:22,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 870 transitions. [2024-11-10 13:56:22,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-10 13:56:22,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:22,191 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:22,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 13:56:22,191 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:22,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:22,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1040272901, now seen corresponding path program 1 times [2024-11-10 13:56:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:22,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707107203] [2024-11-10 13:56:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:22,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 13:56:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-10 13:56:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 13:56:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:22,787 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-10 13:56:22,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:22,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707107203] [2024-11-10 13:56:22,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707107203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:22,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437824836] [2024-11-10 13:56:22,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:22,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:22,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:22,790 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:22,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 13:56:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:23,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 13:56:23,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:23,552 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 13:56:23,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 13:56:23,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437824836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 13:56:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2024-11-10 13:56:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550231813] [2024-11-10 13:56:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:23,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 13:56:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 13:56:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:23,553 INFO L87 Difference]: Start difference. First operand 637 states and 870 transitions. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:23,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:23,737 INFO L93 Difference]: Finished difference Result 1247 states and 1719 transitions. [2024-11-10 13:56:23,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 13:56:23,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 194 [2024-11-10 13:56:23,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:23,741 INFO L225 Difference]: With dead ends: 1247 [2024-11-10 13:56:23,741 INFO L226 Difference]: Without dead ends: 703 [2024-11-10 13:56:23,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:23,743 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 772 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1887 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:23,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1887 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 13:56:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-11-10 13:56:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 640. [2024-11-10 13:56:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 628 states have (on average 1.3614649681528663) internal successors, (855), 629 states have internal predecessors, (855), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-10 13:56:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 876 transitions. [2024-11-10 13:56:23,759 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 876 transitions. Word has length 194 [2024-11-10 13:56:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:23,760 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 876 transitions. [2024-11-10 13:56:23,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 876 transitions. [2024-11-10 13:56:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-10 13:56:23,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:23,763 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:23,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 13:56:23,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:23,964 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:23,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:23,964 INFO L85 PathProgramCache]: Analyzing trace with hash -887268997, now seen corresponding path program 1 times [2024-11-10 13:56:23,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:23,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513593194] [2024-11-10 13:56:23,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:23,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:24,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:25,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 13:56:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:25,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-10 13:56:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:25,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-10 13:56:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-10 13:56:25,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:25,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513593194] [2024-11-10 13:56:25,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513593194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:25,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122985516] [2024-11-10 13:56:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:25,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:25,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:25,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:25,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 13:56:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:25,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 13:56:25,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 13:56:25,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 13:56:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-10 13:56:25,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122985516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 13:56:25,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 13:56:25,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5] total 12 [2024-11-10 13:56:25,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842298391] [2024-11-10 13:56:25,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 13:56:25,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 13:56:25,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:25,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 13:56:25,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-10 13:56:25,994 INFO L87 Difference]: Start difference. First operand 640 states and 876 transitions. Second operand has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 11 states have internal predecessors, (263), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-10 13:56:26,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:26,588 INFO L93 Difference]: Finished difference Result 1261 states and 1752 transitions. [2024-11-10 13:56:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 13:56:26,589 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 11 states have internal predecessors, (263), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 198 [2024-11-10 13:56:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:26,591 INFO L225 Difference]: With dead ends: 1261 [2024-11-10 13:56:26,591 INFO L226 Difference]: Without dead ends: 714 [2024-11-10 13:56:26,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-10 13:56:26,592 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 393 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:26,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 2993 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 13:56:26,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-10 13:56:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 649. [2024-11-10 13:56:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 636 states have (on average 1.3663522012578617) internal successors, (869), 637 states have internal predecessors, (869), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 893 transitions. [2024-11-10 13:56:26,609 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 893 transitions. Word has length 198 [2024-11-10 13:56:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:26,610 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 893 transitions. [2024-11-10 13:56:26,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 11 states have internal predecessors, (263), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-10 13:56:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 893 transitions. [2024-11-10 13:56:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-10 13:56:26,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:26,612 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:26,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 13:56:26,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:26,813 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:26,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:26,814 INFO L85 PathProgramCache]: Analyzing trace with hash -562767493, now seen corresponding path program 2 times [2024-11-10 13:56:26,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:26,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627308815] [2024-11-10 13:56:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:26,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:27,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:27,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-10 13:56:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:27,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-10 13:56:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:27,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-10 13:56:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 13:56:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627308815] [2024-11-10 13:56:27,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627308815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:27,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908137050] [2024-11-10 13:56:27,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 13:56:27,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:27,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:27,807 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:27,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 13:56:28,403 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 13:56:28,403 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 13:56:28,410 INFO L255 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 13:56:28,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-10 13:56:28,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 13:56:28,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908137050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:28,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 13:56:28,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2024-11-10 13:56:28,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470235859] [2024-11-10 13:56:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:28,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 13:56:28,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 13:56:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-10 13:56:28,517 INFO L87 Difference]: Start difference. First operand 649 states and 893 transitions. Second operand has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:28,932 INFO L93 Difference]: Finished difference Result 1159 states and 1599 transitions. [2024-11-10 13:56:28,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 13:56:28,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 206 [2024-11-10 13:56:28,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:28,938 INFO L225 Difference]: With dead ends: 1159 [2024-11-10 13:56:28,938 INFO L226 Difference]: Without dead ends: 743 [2024-11-10 13:56:28,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-10 13:56:28,940 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 25 mSDsluCounter, 2118 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:28,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2552 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 13:56:28,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-11-10 13:56:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 719. [2024-11-10 13:56:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 706 states have (on average 1.3526912181303117) internal successors, (955), 707 states have internal predecessors, (955), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:28,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 979 transitions. [2024-11-10 13:56:28,956 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 979 transitions. Word has length 206 [2024-11-10 13:56:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:28,957 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 979 transitions. [2024-11-10 13:56:28,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.22222222222222) internal successors, (182), 9 states have internal predecessors, (182), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 979 transitions. [2024-11-10 13:56:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-10 13:56:28,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:28,959 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:28,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 13:56:29,159 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,SelfDestructingSolverStorable12 [2024-11-10 13:56:29,160 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:29,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:29,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1122419650, now seen corresponding path program 1 times [2024-11-10 13:56:29,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:29,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237381884] [2024-11-10 13:56:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:29,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:29,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:29,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-10 13:56:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:29,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 13:56:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:29,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-10 13:56:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-10 13:56:29,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:29,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237381884] [2024-11-10 13:56:29,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237381884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:29,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:29,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 13:56:29,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760540596] [2024-11-10 13:56:29,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:29,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 13:56:29,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:29,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 13:56:29,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:29,738 INFO L87 Difference]: Start difference. First operand 719 states and 979 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:30,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 13:56:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:31,450 INFO L93 Difference]: Finished difference Result 1173 states and 1605 transitions. [2024-11-10 13:56:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 13:56:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 207 [2024-11-10 13:56:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:31,454 INFO L225 Difference]: With dead ends: 1173 [2024-11-10 13:56:31,454 INFO L226 Difference]: Without dead ends: 723 [2024-11-10 13:56:31,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:31,456 INFO L432 NwaCegarLoop]: 439 mSDtfsCounter, 16 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:31,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2060 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 13:56:31,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-10 13:56:31,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 713. [2024-11-10 13:56:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 700 states have (on average 1.35) internal successors, (945), 701 states have internal predecessors, (945), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:31,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 969 transitions. [2024-11-10 13:56:31,473 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 969 transitions. Word has length 207 [2024-11-10 13:56:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:31,474 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 969 transitions. [2024-11-10 13:56:31,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 6 states have internal predecessors, (179), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:31,474 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 969 transitions. [2024-11-10 13:56:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-10 13:56:31,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:31,476 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:31,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 13:56:31,476 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:31,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1827510344, now seen corresponding path program 1 times [2024-11-10 13:56:31,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:31,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657949141] [2024-11-10 13:56:31,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:31,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:31,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:31,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-10 13:56:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:31,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-10 13:56:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:31,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 13:56:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-10 13:56:31,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:31,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657949141] [2024-11-10 13:56:31,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657949141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:31,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:31,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 13:56:31,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627857983] [2024-11-10 13:56:31,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:31,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 13:56:31,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:31,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 13:56:31,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:31,939 INFO L87 Difference]: Start difference. First operand 713 states and 969 transitions. Second operand has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:32,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:32,478 INFO L93 Difference]: Finished difference Result 1172 states and 1602 transitions. [2024-11-10 13:56:32,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 13:56:32,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 208 [2024-11-10 13:56:32,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:32,482 INFO L225 Difference]: With dead ends: 1172 [2024-11-10 13:56:32,482 INFO L226 Difference]: Without dead ends: 727 [2024-11-10 13:56:32,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 13:56:32,484 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 11 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:32,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2087 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 13:56:32,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-10 13:56:32,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 721. [2024-11-10 13:56:32,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 708 states have (on average 1.3488700564971752) internal successors, (955), 709 states have internal predecessors, (955), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:32,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 979 transitions. [2024-11-10 13:56:32,505 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 979 transitions. Word has length 208 [2024-11-10 13:56:32,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:32,506 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 979 transitions. [2024-11-10 13:56:32,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 13:56:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 979 transitions. [2024-11-10 13:56:32,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-10 13:56:32,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:32,508 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:32,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 13:56:32,509 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:32,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash 791767676, now seen corresponding path program 1 times [2024-11-10 13:56:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144847850] [2024-11-10 13:56:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:32,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:33,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:33,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-10 13:56:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:33,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-10 13:56:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:33,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-10 13:56:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:33,692 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 48 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 13:56:33,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:33,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144847850] [2024-11-10 13:56:33,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144847850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:33,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375195438] [2024-11-10 13:56:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:33,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:33,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:33,697 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) [2024-11-10 13:56:33,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 13:56:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:34,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-10 13:56:34,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:34,531 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 95 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-10 13:56:34,531 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 13:56:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 19 proven. 53 refuted. 1 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-10 13:56:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375195438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 13:56:38,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 13:56:38,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 19 [2024-11-10 13:56:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229057367] [2024-11-10 13:56:38,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 13:56:38,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 13:56:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 13:56:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=252, Unknown=1, NotChecked=0, Total=342 [2024-11-10 13:56:38,735 INFO L87 Difference]: Start difference. First operand 721 states and 979 transitions. Second operand has 19 states, 19 states have (on average 11.052631578947368) internal successors, (210), 18 states have internal predecessors, (210), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 13:56:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:39,754 INFO L93 Difference]: Finished difference Result 1368 states and 1886 transitions. [2024-11-10 13:56:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-10 13:56:39,754 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.052631578947368) internal successors, (210), 18 states have internal predecessors, (210), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 209 [2024-11-10 13:56:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:39,757 INFO L225 Difference]: With dead ends: 1368 [2024-11-10 13:56:39,758 INFO L226 Difference]: Without dead ends: 736 [2024-11-10 13:56:39,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=268, Invalid=661, Unknown=1, NotChecked=0, Total=930 [2024-11-10 13:56:39,759 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 34 mSDsluCounter, 5922 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 6357 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:39,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 6357 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 13:56:39,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-10 13:56:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 730. [2024-11-10 13:56:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 717 states have (on average 1.3542538354253835) internal successors, (971), 718 states have internal predecessors, (971), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:39,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 995 transitions. [2024-11-10 13:56:39,775 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 995 transitions. Word has length 209 [2024-11-10 13:56:39,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:39,776 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 995 transitions. [2024-11-10 13:56:39,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.052631578947368) internal successors, (210), 18 states have internal predecessors, (210), 2 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 13:56:39,776 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 995 transitions. [2024-11-10 13:56:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-10 13:56:39,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:39,778 INFO L215 NwaCegarLoop]: trace histogram [26, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:39,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 13:56:39,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 13:56:39,979 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:39,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:39,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1700042478, now seen corresponding path program 2 times [2024-11-10 13:56:39,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:39,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478149251] [2024-11-10 13:56:39,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:39,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:40,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:40,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 13:56:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:40,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-10 13:56:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:40,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 13:56:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 116 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-10 13:56:40,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:40,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478149251] [2024-11-10 13:56:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478149251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:40,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129566693] [2024-11-10 13:56:40,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 13:56:40,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:40,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:40,983 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:40,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 13:56:42,373 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 13:56:42,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 13:56:42,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1417 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 13:56:42,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2024-11-10 13:56:42,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 13:56:42,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129566693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:42,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 13:56:42,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-10 13:56:42,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145431090] [2024-11-10 13:56:42,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:42,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 13:56:42,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:42,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 13:56:42,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-10 13:56:42,642 INFO L87 Difference]: Start difference. First operand 730 states and 995 transitions. Second operand has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:43,007 INFO L93 Difference]: Finished difference Result 1417 states and 1946 transitions. [2024-11-10 13:56:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 13:56:43,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 223 [2024-11-10 13:56:43,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:43,011 INFO L225 Difference]: With dead ends: 1417 [2024-11-10 13:56:43,011 INFO L226 Difference]: Without dead ends: 740 [2024-11-10 13:56:43,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-10 13:56:43,013 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:43,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2320 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 13:56:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-10 13:56:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 738. [2024-11-10 13:56:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 725 states have (on average 1.3531034482758622) internal successors, (981), 726 states have internal predecessors, (981), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:43,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1005 transitions. [2024-11-10 13:56:43,030 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1005 transitions. Word has length 223 [2024-11-10 13:56:43,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:43,030 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 1005 transitions. [2024-11-10 13:56:43,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.857142857142858) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1005 transitions. [2024-11-10 13:56:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-10 13:56:43,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:43,033 INFO L215 NwaCegarLoop]: trace histogram [26, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:43,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 13:56:43,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:43,234 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:43,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:43,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1178717976, now seen corresponding path program 1 times [2024-11-10 13:56:43,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:43,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216009032] [2024-11-10 13:56:43,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:43,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:43,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 13:56:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:43,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-10 13:56:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:43,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-10 13:56:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:43,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 13:56:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2024-11-10 13:56:43,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:43,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216009032] [2024-11-10 13:56:43,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216009032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:43,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:43,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 13:56:43,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680244124] [2024-11-10 13:56:43,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:43,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 13:56:43,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:43,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 13:56:43,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:43,794 INFO L87 Difference]: Start difference. First operand 738 states and 1005 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:44,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:44,408 INFO L93 Difference]: Finished difference Result 1431 states and 1965 transitions. [2024-11-10 13:56:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 13:56:44,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 223 [2024-11-10 13:56:44,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:44,411 INFO L225 Difference]: With dead ends: 1431 [2024-11-10 13:56:44,411 INFO L226 Difference]: Without dead ends: 750 [2024-11-10 13:56:44,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 13:56:44,412 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 11 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:44,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2670 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 13:56:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-10 13:56:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 738. [2024-11-10 13:56:44,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 725 states have (on average 1.3531034482758622) internal successors, (981), 726 states have internal predecessors, (981), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1005 transitions. [2024-11-10 13:56:44,427 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1005 transitions. Word has length 223 [2024-11-10 13:56:44,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:44,427 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 1005 transitions. [2024-11-10 13:56:44,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 7 states have internal predecessors, (181), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1005 transitions. [2024-11-10 13:56:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 13:56:44,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:44,429 INFO L215 NwaCegarLoop]: trace histogram [26, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:44,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 13:56:44,429 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:44,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:44,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1909214309, now seen corresponding path program 1 times [2024-11-10 13:56:44,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:44,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609656797] [2024-11-10 13:56:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:44,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:45,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 13:56:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:45,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 13:56:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:45,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 13:56:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:45,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 13:56:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 116 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-10 13:56:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609656797] [2024-11-10 13:56:45,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609656797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705906814] [2024-11-10 13:56:45,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:45,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:45,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:45,415 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:45,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 13:56:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:46,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 13:56:46,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2024-11-10 13:56:46,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 13:56:46,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705906814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:46,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 13:56:46,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-10 13:56:46,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446316429] [2024-11-10 13:56:46,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:46,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 13:56:46,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:46,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 13:56:46,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-10 13:56:46,289 INFO L87 Difference]: Start difference. First operand 738 states and 1005 transitions. Second operand has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:46,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:46,768 INFO L93 Difference]: Finished difference Result 1434 states and 1965 transitions. [2024-11-10 13:56:46,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 13:56:46,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 224 [2024-11-10 13:56:46,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:46,771 INFO L225 Difference]: With dead ends: 1434 [2024-11-10 13:56:46,771 INFO L226 Difference]: Without dead ends: 758 [2024-11-10 13:56:46,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-10 13:56:46,773 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 33 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:46,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 2712 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 13:56:46,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-10 13:56:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 748. [2024-11-10 13:56:46,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 735 states have (on average 1.3510204081632653) internal successors, (993), 736 states have internal predecessors, (993), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:46,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1017 transitions. [2024-11-10 13:56:46,788 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1017 transitions. Word has length 224 [2024-11-10 13:56:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:46,788 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1017 transitions. [2024-11-10 13:56:46,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:46,788 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1017 transitions. [2024-11-10 13:56:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-10 13:56:46,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:46,790 INFO L215 NwaCegarLoop]: trace histogram [26, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:46,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 13:56:46,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:46,991 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:46,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:46,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1433013845, now seen corresponding path program 1 times [2024-11-10 13:56:46,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:46,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388388922] [2024-11-10 13:56:46,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:46,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:47,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 13:56:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:47,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-10 13:56:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:47,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 13:56:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:47,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 13:56:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:47,562 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2024-11-10 13:56:47,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:47,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388388922] [2024-11-10 13:56:47,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388388922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 13:56:47,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 13:56:47,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 13:56:47,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522184469] [2024-11-10 13:56:47,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 13:56:47,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 13:56:47,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:47,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 13:56:47,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-10 13:56:47,564 INFO L87 Difference]: Start difference. First operand 748 states and 1017 transitions. Second operand has 10 states, 10 states have (on average 18.2) internal successors, (182), 9 states have internal predecessors, (182), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:48,182 INFO L93 Difference]: Finished difference Result 1451 states and 1987 transitions. [2024-11-10 13:56:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 13:56:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 9 states have internal predecessors, (182), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 224 [2024-11-10 13:56:48,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:48,188 INFO L225 Difference]: With dead ends: 1451 [2024-11-10 13:56:48,189 INFO L226 Difference]: Without dead ends: 770 [2024-11-10 13:56:48,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-10 13:56:48,191 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 19 mSDsluCounter, 3063 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3505 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:48,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3505 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 13:56:48,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-10 13:56:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 762. [2024-11-10 13:56:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 749 states have (on average 1.349799732977303) internal successors, (1011), 750 states have internal predecessors, (1011), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2024-11-10 13:56:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1035 transitions. [2024-11-10 13:56:48,207 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1035 transitions. Word has length 224 [2024-11-10 13:56:48,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:48,207 INFO L471 AbstractCegarLoop]: Abstraction has 762 states and 1035 transitions. [2024-11-10 13:56:48,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 9 states have internal predecessors, (182), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-10 13:56:48,207 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1035 transitions. [2024-11-10 13:56:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-10 13:56:48,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:48,208 INFO L215 NwaCegarLoop]: trace histogram [26, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:48,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 13:56:48,209 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:48,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:48,209 INFO L85 PathProgramCache]: Analyzing trace with hash -952946969, now seen corresponding path program 1 times [2024-11-10 13:56:48,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:48,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793089847] [2024-11-10 13:56:48,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:49,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 13:56:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:49,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 13:56:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:49,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-10 13:56:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:49,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 13:56:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 2 proven. 116 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-10 13:56:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793089847] [2024-11-10 13:56:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793089847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63781765] [2024-11-10 13:56:49,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:49,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:49,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:49,300 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:49,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 13:56:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:50,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-10 13:56:50,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 115 proven. 6 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-10 13:56:50,840 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 13:56:51,195 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 217 proven. 55 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-10 13:56:51,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63781765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 13:56:51,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 13:56:51,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 14] total 25 [2024-11-10 13:56:51,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556313308] [2024-11-10 13:56:51,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 13:56:51,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-10 13:56:51,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 13:56:51,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-10 13:56:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=434, Unknown=0, NotChecked=0, Total=600 [2024-11-10 13:56:51,198 INFO L87 Difference]: Start difference. First operand 762 states and 1035 transitions. Second operand has 25 states, 25 states have (on average 14.4) internal successors, (360), 24 states have internal predecessors, (360), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-10 13:56:54,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 13:56:54,410 INFO L93 Difference]: Finished difference Result 1493 states and 2055 transitions. [2024-11-10 13:56:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 13:56:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 14.4) internal successors, (360), 24 states have internal predecessors, (360), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 225 [2024-11-10 13:56:54,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 13:56:54,414 INFO L225 Difference]: With dead ends: 1493 [2024-11-10 13:56:54,414 INFO L226 Difference]: Without dead ends: 836 [2024-11-10 13:56:54,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=554, Invalid=1086, Unknown=0, NotChecked=0, Total=1640 [2024-11-10 13:56:54,416 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 396 mSDsluCounter, 6472 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 6916 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-10 13:56:54,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 6916 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-10 13:56:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-10 13:56:54,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 767. [2024-11-10 13:56:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 754 states have (on average 1.3488063660477454) internal successors, (1017), 755 states have internal predecessors, (1017), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-10 13:56:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1038 transitions. [2024-11-10 13:56:54,435 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1038 transitions. Word has length 225 [2024-11-10 13:56:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 13:56:54,435 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1038 transitions. [2024-11-10 13:56:54,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 14.4) internal successors, (360), 24 states have internal predecessors, (360), 3 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-10 13:56:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1038 transitions. [2024-11-10 13:56:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-10 13:56:54,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 13:56:54,438 INFO L215 NwaCegarLoop]: trace histogram [40, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 13:56:54,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 13:56:54,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:54,639 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 13:56:54,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 13:56:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash -259586307, now seen corresponding path program 2 times [2024-11-10 13:56:54,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 13:56:54,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922826189] [2024-11-10 13:56:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 13:56:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 13:56:55,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:55,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 13:56:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:55,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-10 13:56:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:55,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-10 13:56:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:55,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-10 13:56:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 13:56:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 966 backedges. 2 proven. 249 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-10 13:56:55,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 13:56:55,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922826189] [2024-11-10 13:56:55,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922826189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 13:56:55,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44050027] [2024-11-10 13:56:55,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 13:56:55,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 13:56:55,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 13:56:55,847 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 13:56:55,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 13:56:58,645 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 13:56:58,645 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 13:56:58,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 393 conjuncts are in the unsatisfiable core [2024-11-10 13:56:58,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 13:56:58,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-10 13:56:58,877 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 11 treesize of output 7 [2024-11-10 13:56:58,895 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-10 13:56:58,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-11-10 13:56:58,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2024-11-10 13:56:58,965 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 18 treesize of output 10 [2024-11-10 13:56:58,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2024-11-10 13:56:59,149 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-10 13:56:59,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-10 13:56:59,158 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 24 treesize of output 11