./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_BER_nondet_test4-2.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 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 11:45:22,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 11:45:22,937 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 11:45:22,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 11:45:22,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 11:45:22,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 11:45:22,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 11:45:22,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 11:45:22,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 11:45:22,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 11:45:22,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 11:45:22,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 11:45:22,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 11:45:22,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 11:45:22,982 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 11:45:22,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 11:45:22,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 11:45:22,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 11:45:22,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 11:45:22,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 11:45:22,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 11:45:22,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 11:45:22,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 11:45:22,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 11:45:22,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 11:45:22,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 11:45:22,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 11:45:22,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 11:45:22,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 11:45:22,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 11:45:22,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 11:45:22,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 11:45:22,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 11:45:22,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 11:45:22,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 11:45:22,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 11:45:22,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 11:45:22,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 11:45:22,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 11:45:22,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 11:45:22,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 11:45:22,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 11:45:22,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-12 11:45:23,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 11:45:23,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 11:45:23,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 11:45:23,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 11:45:23,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 11:45:23,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i [2024-11-12 11:45:24,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 11:45:24,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 11:45:24,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i [2024-11-12 11:45:24,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514587cc6/9390dc8b8ab446aeb0bced41a14c8f0e/FLAGdb75816ed [2024-11-12 11:45:24,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/514587cc6/9390dc8b8ab446aeb0bced41a14c8f0e [2024-11-12 11:45:25,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 11:45:25,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 11:45:25,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 11:45:25,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 11:45:25,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 11:45:25,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:45:24" (1/1) ... [2024-11-12 11:45:25,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4359c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25, skipping insertion in model container [2024-11-12 11:45:25,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:45:24" (1/1) ... [2024-11-12 11:45:25,070 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 11:45:25,479 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_BER_nondet_test4-2.i[33519,33532] [2024-11-12 11:45:25,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 11:45:25,623 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 11:45:25,657 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_BER_nondet_test4-2.i[33519,33532] [2024-11-12 11:45:25,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 11:45:25,789 INFO L204 MainTranslator]: Completed translation [2024-11-12 11:45:25,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25 WrapperNode [2024-11-12 11:45:25,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 11:45:25,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 11:45:25,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 11:45:25,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 11:45:25,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:25,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:25,929 INFO L138 Inliner]: procedures = 176, calls = 376, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1715 [2024-11-12 11:45:25,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 11:45:25,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 11:45:25,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 11:45:25,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 11:45:25,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:25,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:25,962 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,087 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-11-12 11:45:26,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 11:45:26,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 11:45:26,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 11:45:26,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 11:45:26,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (1/1) ... [2024-11-12 11:45:26,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 11:45:26,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 11:45:26,233 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) [2024-11-12 11:45:26,240 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 [2024-11-12 11:45:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 11:45:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 11:45:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 11:45:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 11:45:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-12 11:45:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-12 11:45:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-12 11:45:26,281 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-12 11:45:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 11:45:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 11:45:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 11:45:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 11:45:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 11:45:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 11:45:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 11:45:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 11:45:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 11:45:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 11:45:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 11:45:26,548 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 11:45:26,550 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 11:45:28,263 INFO L? ?]: Removed 404 outVars from TransFormulas that were not future-live. [2024-11-12 11:45:28,263 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 11:45:28,289 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 11:45:28,289 INFO L316 CfgBuilder]: Removed 69 assume(true) statements. [2024-11-12 11:45:28,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:45:28 BoogieIcfgContainer [2024-11-12 11:45:28,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 11:45:28,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 11:45:28,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 11:45:28,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 11:45:28,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:45:24" (1/3) ... [2024-11-12 11:45:28,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ece531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:45:28, skipping insertion in model container [2024-11-12 11:45:28,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:45:25" (2/3) ... [2024-11-12 11:45:28,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ece531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:45:28, skipping insertion in model container [2024-11-12 11:45:28,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:45:28" (3/3) ... [2024-11-12 11:45:28,302 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-2.i [2024-11-12 11:45:28,318 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 11:45:28,318 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 11:45:28,398 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 11:45:28,405 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;@60984765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 11:45:28,406 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 11:45:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 439 states, 430 states have (on average 1.613953488372093) internal successors, (694), 431 states have internal predecessors, (694), 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) [2024-11-12 11:45:28,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-12 11:45:28,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:45:28,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:45:28,424 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:45:28,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:45:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash -639633962, now seen corresponding path program 1 times [2024-11-12 11:45:28,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:45:28,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788545834] [2024-11-12 11:45:28,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:28,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:45:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 11:45:28,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:45:28,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788545834] [2024-11-12 11:45:28,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788545834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:45:28,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:45:28,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 11:45:28,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624630216] [2024-11-12 11:45:28,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:45:28,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 11:45:28,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:45:28,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 11:45:28,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 11:45:28,766 INFO L87 Difference]: Start difference. First operand has 439 states, 430 states have (on average 1.613953488372093) internal successors, (694), 431 states have internal predecessors, (694), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-12 11:45:29,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:45:29,208 INFO L93 Difference]: Finished difference Result 1198 states and 1933 transitions. [2024-11-12 11:45:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 11:45:29,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-12 11:45:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:45:29,233 INFO L225 Difference]: With dead ends: 1198 [2024-11-12 11:45:29,233 INFO L226 Difference]: Without dead ends: 720 [2024-11-12 11:45:29,239 INFO L434 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 [2024-11-12 11:45:29,244 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 467 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 11:45:29,246 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1799 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 11:45:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-12 11:45:29,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2024-11-12 11:45:29,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 709 states have (on average 1.4541607898448519) internal successors, (1031), 709 states have internal predecessors, (1031), 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) [2024-11-12 11:45:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1049 transitions. [2024-11-12 11:45:29,343 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1049 transitions. Word has length 10 [2024-11-12 11:45:29,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:45:29,344 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1049 transitions. [2024-11-12 11:45:29,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-12 11:45:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1049 transitions. [2024-11-12 11:45:29,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-12 11:45:29,352 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:45:29,352 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 11:45:29,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 11:45:29,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:45:29,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:45:29,354 INFO L85 PathProgramCache]: Analyzing trace with hash 811678255, now seen corresponding path program 1 times [2024-11-12 11:45:29,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:45:29,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138671597] [2024-11-12 11:45:29,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:29,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:45:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:30,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-12 11:45:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:30,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-12 11:45:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 11:45:30,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:45:30,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138671597] [2024-11-12 11:45:30,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138671597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:45:30,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:45:30,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 11:45:30,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265685321] [2024-11-12 11:45:30,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:45:30,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 11:45:30,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:45:30,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 11:45:30,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 11:45:30,102 INFO L87 Difference]: Start difference. First operand 720 states and 1049 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-12 11:45:30,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:45:30,582 INFO L93 Difference]: Finished difference Result 1389 states and 2027 transitions. [2024-11-12 11:45:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 11:45:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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 171 [2024-11-12 11:45:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:45:30,589 INFO L225 Difference]: With dead ends: 1389 [2024-11-12 11:45:30,590 INFO L226 Difference]: Without dead ends: 729 [2024-11-12 11:45:30,594 INFO L434 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 [2024-11-12 11:45:30,597 INFO L435 NwaCegarLoop]: 547 mSDtfsCounter, 108 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 11:45:30,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1996 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 11:45:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-12 11:45:30,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 720. [2024-11-12 11:45:30,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 709 states have (on average 1.4344146685472496) internal successors, (1017), 709 states have internal predecessors, (1017), 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) [2024-11-12 11:45:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1035 transitions. [2024-11-12 11:45:30,640 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1035 transitions. Word has length 171 [2024-11-12 11:45:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:45:30,641 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1035 transitions. [2024-11-12 11:45:30,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-12 11:45:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1035 transitions. [2024-11-12 11:45:30,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-12 11:45:30,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:45:30,650 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 11:45:30,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 11:45:30,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:45:30,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:45:30,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2074298589, now seen corresponding path program 1 times [2024-11-12 11:45:30,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:45:30,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354682220] [2024-11-12 11:45:30,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:30,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:45:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:31,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-12 11:45:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:31,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-12 11:45:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 11:45:31,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:45:31,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354682220] [2024-11-12 11:45:31,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354682220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:45:31,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:45:31,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 11:45:31,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724395407] [2024-11-12 11:45:31,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:45:31,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 11:45:31,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:45:31,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 11:45:31,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 11:45:31,084 INFO L87 Difference]: Start difference. First operand 720 states and 1035 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-12 11:45:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:45:31,459 INFO L93 Difference]: Finished difference Result 1379 states and 1994 transitions. [2024-11-12 11:45:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 11:45:31,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 171 [2024-11-12 11:45:31,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:45:31,465 INFO L225 Difference]: With dead ends: 1379 [2024-11-12 11:45:31,466 INFO L226 Difference]: Without dead ends: 735 [2024-11-12 11:45:31,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 11:45:31,471 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 4 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 11:45:31,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1567 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 11:45:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-11-12 11:45:31,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 732. [2024-11-12 11:45:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 721 states have (on average 1.4271844660194175) internal successors, (1029), 721 states have internal predecessors, (1029), 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) [2024-11-12 11:45:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1047 transitions. [2024-11-12 11:45:31,498 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1047 transitions. Word has length 171 [2024-11-12 11:45:31,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:45:31,500 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1047 transitions. [2024-11-12 11:45:31,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-12 11:45:31,500 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1047 transitions. [2024-11-12 11:45:31,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-12 11:45:31,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:45:31,503 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-12 11:45:31,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 11:45:31,503 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:45:31,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:45:31,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1533869083, now seen corresponding path program 1 times [2024-11-12 11:45:31,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:45:31,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853737603] [2024-11-12 11:45:31,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:31,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:45:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-12 11:45:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:31,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-12 11:45:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-12 11:45:31,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:45:31,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853737603] [2024-11-12 11:45:31,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853737603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:45:31,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:45:31,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 11:45:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362749477] [2024-11-12 11:45:31,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:45:31,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 11:45:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:45:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 11:45:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 11:45:31,766 INFO L87 Difference]: Start difference. First operand 732 states and 1047 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-12 11:45:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:45:32,129 INFO L93 Difference]: Finished difference Result 1317 states and 1894 transitions. [2024-11-12 11:45:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 11:45:32,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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 171 [2024-11-12 11:45:32,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:45:32,134 INFO L225 Difference]: With dead ends: 1317 [2024-11-12 11:45:32,135 INFO L226 Difference]: Without dead ends: 733 [2024-11-12 11:45:32,136 INFO L434 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 [2024-11-12 11:45:32,137 INFO L435 NwaCegarLoop]: 567 mSDtfsCounter, 137 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 11:45:32,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1594 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 11:45:32,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-12 11:45:32,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 730. [2024-11-12 11:45:32,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 719 states have (on average 1.426981919332406) internal successors, (1026), 719 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) [2024-11-12 11:45:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 1044 transitions. [2024-11-12 11:45:32,164 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 1044 transitions. Word has length 171 [2024-11-12 11:45:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:45:32,165 INFO L471 AbstractCegarLoop]: Abstraction has 730 states and 1044 transitions. [2024-11-12 11:45:32,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-12 11:45:32,165 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 1044 transitions. [2024-11-12 11:45:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-12 11:45:32,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:45:32,167 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:45:32,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 11:45:32,168 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:45:32,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:45:32,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2121725111, now seen corresponding path program 1 times [2024-11-12 11:45:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:45:32,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205139497] [2024-11-12 11:45:32,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:32,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:45:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:32,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 11:45:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:32,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-12 11:45:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:32,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-12 11:45:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:32,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-12 11:45:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 11:45:32,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:45:32,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205139497] [2024-11-12 11:45:32,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205139497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:45:32,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:45:32,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 11:45:32,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467407318] [2024-11-12 11:45:32,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:45:32,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 11:45:32,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:45:32,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 11:45:32,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 11:45:32,586 INFO L87 Difference]: Start difference. First operand 730 states and 1044 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-11-12 11:45:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:45:32,959 INFO L93 Difference]: Finished difference Result 1176 states and 1686 transitions. [2024-11-12 11:45:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 11:45:32,960 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), 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 186 [2024-11-12 11:45:32,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:45:32,965 INFO L225 Difference]: With dead ends: 1176 [2024-11-12 11:45:32,965 INFO L226 Difference]: Without dead ends: 649 [2024-11-12 11:45:32,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 11:45:32,967 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 33 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 11:45:32,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1753 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 11:45:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-12 11:45:33,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 646. [2024-11-12 11:45:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 635 states have (on average 1.373228346456693) internal successors, (872), 635 states have internal predecessors, (872), 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) [2024-11-12 11:45:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 890 transitions. [2024-11-12 11:45:33,004 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 890 transitions. Word has length 186 [2024-11-12 11:45:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:45:33,005 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 890 transitions. [2024-11-12 11:45:33,005 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), 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) [2024-11-12 11:45:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 890 transitions. [2024-11-12 11:45:33,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-12 11:45:33,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:45:33,009 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:45:33,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 11:45:33,012 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:45:33,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:45:33,013 INFO L85 PathProgramCache]: Analyzing trace with hash -61607613, now seen corresponding path program 1 times [2024-11-12 11:45:33,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:45:33,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045826826] [2024-11-12 11:45:33,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:45:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:34,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 11:45:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:34,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-12 11:45:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:34,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-12 11:45:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:34,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-12 11:45:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-12 11:45:34,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:45:34,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045826826] [2024-11-12 11:45:34,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045826826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 11:45:34,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073843997] [2024-11-12 11:45:34,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:45:34,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 11:45:34,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 11:45:34,440 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) [2024-11-12 11:45:34,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 11:45:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:45:35,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-12 11:45:35,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 11:45:35,078 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 22 treesize of output 7 [2024-11-12 11:45:35,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 11:45:35,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 38 [2024-11-12 11:45:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 11:45:35,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 11:45:35,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073843997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:45:35,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 11:45:35,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-12 11:45:35,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097538261] [2024-11-12 11:45:35,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:45:35,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-12 11:45:35,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:45:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-12 11:45:35,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-12 11:45:35,908 INFO L87 Difference]: Start difference. First operand 646 states and 890 transitions. Second operand has 11 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 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) [2024-11-12 11:45:40,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:45:48,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:45:52,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:45:56,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:00,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:04,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:09,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:14,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:18,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:22,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:25,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-12 11:46:28,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:46:28,537 INFO L93 Difference]: Finished difference Result 1303 states and 1784 transitions. [2024-11-12 11:46:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 11:46:28,538 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 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 186 [2024-11-12 11:46:28,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:46:28,542 INFO L225 Difference]: With dead ends: 1303 [2024-11-12 11:46:28,542 INFO L226 Difference]: Without dead ends: 749 [2024-11-12 11:46:28,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=92, Invalid=369, Unknown=1, NotChecked=0, Total=462 [2024-11-12 11:46:28,544 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 723 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 7 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.8s IncrementalHoareTripleChecker+Time [2024-11-12 11:46:28,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3057 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1358 Invalid, 11 Unknown, 0 Unchecked, 47.8s Time] [2024-11-12 11:46:28,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-12 11:46:28,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 678. [2024-11-12 11:46:28,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 667 states have (on average 1.3628185907046477) internal successors, (909), 667 states have internal predecessors, (909), 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) [2024-11-12 11:46:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 927 transitions. [2024-11-12 11:46:28,572 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 927 transitions. Word has length 186 [2024-11-12 11:46:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:46:28,573 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 927 transitions. [2024-11-12 11:46:28,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.363636363636363) internal successors, (169), 11 states have internal predecessors, (169), 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) [2024-11-12 11:46:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 927 transitions. [2024-11-12 11:46:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-12 11:46:28,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:46:28,575 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:46:28,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 11:46:28,779 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 [2024-11-12 11:46:28,780 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:46:28,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:46:28,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1342261573, now seen corresponding path program 1 times [2024-11-12 11:46:28,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:46:28,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544573980] [2024-11-12 11:46:28,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:28,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:46:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:29,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-12 11:46:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:29,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-12 11:46:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:29,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-12 11:46:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-12 11:46:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:29,205 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 11:46:29,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:46:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544573980] [2024-11-12 11:46:29,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544573980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:46:29,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:46:29,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 11:46:29,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704041627] [2024-11-12 11:46:29,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:46:29,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 11:46:29,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:46:29,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 11:46:29,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 11:46:29,208 INFO L87 Difference]: Start difference. First operand 678 states and 927 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, (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) [2024-11-12 11:46:30,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:46:30,297 INFO L93 Difference]: Finished difference Result 1187 states and 1626 transitions. [2024-11-12 11:46:30,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 11:46:30,299 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, (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 186 [2024-11-12 11:46:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:46:30,302 INFO L225 Difference]: With dead ends: 1187 [2024-11-12 11:46:30,304 INFO L226 Difference]: Without dead ends: 541 [2024-11-12 11:46:30,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 11:46:30,306 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 12 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-12 11:46:30,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1450 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-12 11:46:30,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-12 11:46:30,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 538. [2024-11-12 11:46:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 527 states have (on average 1.3263757115749526) internal successors, (699), 527 states have internal predecessors, (699), 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) [2024-11-12 11:46:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 717 transitions. [2024-11-12 11:46:30,331 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 717 transitions. Word has length 186 [2024-11-12 11:46:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:46:30,332 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 717 transitions. [2024-11-12 11:46:30,332 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, (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) [2024-11-12 11:46:30,332 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 717 transitions. [2024-11-12 11:46:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-12 11:46:30,334 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:46:30,334 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:46:30,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 11:46:30,337 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:46:30,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:46:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1781361707, now seen corresponding path program 1 times [2024-11-12 11:46:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:46:30,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118984340] [2024-11-12 11:46:30,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:46:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:31,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-12 11:46:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:31,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-12 11:46:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:31,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-12 11:46:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:31,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-12 11:46:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-12 11:46:31,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:46:31,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118984340] [2024-11-12 11:46:31,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118984340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 11:46:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272717869] [2024-11-12 11:46:31,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:31,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 11:46:31,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 11:46:31,375 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) [2024-11-12 11:46:31,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 11:46:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:31,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-12 11:46:32,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 11:46:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 11:46:32,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 11:46:32,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272717869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:46:32,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 11:46:32,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-12 11:46:32,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907785695] [2024-11-12 11:46:32,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:46:32,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 11:46:32,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:46:32,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 11:46:32,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 11:46:32,161 INFO L87 Difference]: Start difference. First operand 538 states and 717 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2024-11-12 11:46:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:46:32,501 INFO L93 Difference]: Finished difference Result 1038 states and 1394 transitions. [2024-11-12 11:46:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 11:46:32,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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 187 [2024-11-12 11:46:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:46:32,506 INFO L225 Difference]: With dead ends: 1038 [2024-11-12 11:46:32,507 INFO L226 Difference]: Without dead ends: 538 [2024-11-12 11:46:32,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 11:46:32,509 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 13 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 11:46:32,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1063 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 11:46:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-12 11:46:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-12 11:46:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 527 states have (on average 1.3225806451612903) internal successors, (697), 527 states have internal predecessors, (697), 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) [2024-11-12 11:46:32,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 715 transitions. [2024-11-12 11:46:32,527 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 715 transitions. Word has length 187 [2024-11-12 11:46:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:46:32,528 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 715 transitions. [2024-11-12 11:46:32,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 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) [2024-11-12 11:46:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 715 transitions. [2024-11-12 11:46:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-12 11:46:32,530 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:46:32,530 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:46:32,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 11:46:32,734 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,SelfDestructingSolverStorable7 [2024-11-12 11:46:32,735 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:46:32,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:46:32,736 INFO L85 PathProgramCache]: Analyzing trace with hash -775264098, now seen corresponding path program 1 times [2024-11-12 11:46:32,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:46:32,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016624691] [2024-11-12 11:46:32,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:32,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:46:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:33,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 11:46:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:33,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-12 11:46:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:33,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-12 11:46:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:33,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-12 11:46:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 11:46:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:46:33,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016624691] [2024-11-12 11:46:33,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016624691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:46:33,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:46:33,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-12 11:46:33,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782264283] [2024-11-12 11:46:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:46:33,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 11:46:33,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:46:33,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 11:46:33,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 11:46:33,472 INFO L87 Difference]: Start difference. First operand 538 states and 715 transitions. Second operand has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 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) [2024-11-12 11:46:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:46:34,940 INFO L93 Difference]: Finished difference Result 1044 states and 1408 transitions. [2024-11-12 11:46:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 11:46:34,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 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 188 [2024-11-12 11:46:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:46:34,944 INFO L225 Difference]: With dead ends: 1044 [2024-11-12 11:46:34,944 INFO L226 Difference]: Without dead ends: 547 [2024-11-12 11:46:34,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 11:46:34,946 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 7 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-12 11:46:34,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1678 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-12 11:46:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-12 11:46:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 544. [2024-11-12 11:46:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 533 states have (on average 1.3189493433395871) internal successors, (703), 533 states have internal predecessors, (703), 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) [2024-11-12 11:46:34,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 721 transitions. [2024-11-12 11:46:34,968 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 721 transitions. Word has length 188 [2024-11-12 11:46:34,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:46:34,969 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 721 transitions. [2024-11-12 11:46:34,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.428571428571427) internal successors, (171), 6 states have internal predecessors, (171), 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) [2024-11-12 11:46:34,969 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 721 transitions. [2024-11-12 11:46:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-12 11:46:34,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:46:34,971 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:46:34,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 11:46:34,972 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:46:34,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:46:34,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1714143676, now seen corresponding path program 1 times [2024-11-12 11:46:34,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:46:34,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639279248] [2024-11-12 11:46:34,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:34,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:46:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:35,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-12 11:46:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:35,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-12 11:46:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:35,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-12 11:46:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:35,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-12 11:46:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 11:46:35,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:46:35,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639279248] [2024-11-12 11:46:35,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639279248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:46:35,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 11:46:35,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-12 11:46:35,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705951724] [2024-11-12 11:46:35,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:46:35,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 11:46:35,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:46:35,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 11:46:35,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 11:46:35,769 INFO L87 Difference]: Start difference. First operand 544 states and 721 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 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) [2024-11-12 11:46:38,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:46:38,055 INFO L93 Difference]: Finished difference Result 1050 states and 1412 transitions. [2024-11-12 11:46:38,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 11:46:38,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 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 189 [2024-11-12 11:46:38,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:46:38,058 INFO L225 Difference]: With dead ends: 1050 [2024-11-12 11:46:38,059 INFO L226 Difference]: Without dead ends: 557 [2024-11-12 11:46:38,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-12 11:46:38,060 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 11 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-12 11:46:38,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2281 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-12 11:46:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-12 11:46:38,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 552. [2024-11-12 11:46:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 541 states have (on average 1.3179297597042514) internal successors, (713), 541 states have internal predecessors, (713), 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) [2024-11-12 11:46:38,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 731 transitions. [2024-11-12 11:46:38,083 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 731 transitions. Word has length 189 [2024-11-12 11:46:38,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:46:38,084 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 731 transitions. [2024-11-12 11:46:38,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 7 states have internal predecessors, (172), 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) [2024-11-12 11:46:38,084 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 731 transitions. [2024-11-12 11:46:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-12 11:46:38,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:46:38,086 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:46:38,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 11:46:38,086 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:46:38,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:46:38,087 INFO L85 PathProgramCache]: Analyzing trace with hash 120248104, now seen corresponding path program 1 times [2024-11-12 11:46:38,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:46:38,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668698996] [2024-11-12 11:46:38,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:38,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:46:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:38,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-12 11:46:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:38,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-12 11:46:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:38,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-12 11:46:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:38,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-12 11:46:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-12 11:46:38,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 11:46:38,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668698996] [2024-11-12 11:46:38,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668698996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 11:46:38,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632868466] [2024-11-12 11:46:38,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:38,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 11:46:38,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 11:46:38,999 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) [2024-11-12 11:46:39,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 11:46:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 11:46:39,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 11:46:39,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 11:46:39,809 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 11:46:39,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 11:46:39,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632868466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 11:46:39,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 11:46:39,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-12 11:46:39,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450643307] [2024-11-12 11:46:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 11:46:39,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 11:46:39,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 11:46:39,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 11:46:39,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 11:46:39,816 INFO L87 Difference]: Start difference. First operand 552 states and 731 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 11:46:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 11:46:39,966 INFO L93 Difference]: Finished difference Result 1074 states and 1437 transitions. [2024-11-12 11:46:39,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 11:46:39,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 189 [2024-11-12 11:46:39,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 11:46:39,970 INFO L225 Difference]: With dead ends: 1074 [2024-11-12 11:46:39,970 INFO L226 Difference]: Without dead ends: 617 [2024-11-12 11:46:39,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 11:46:39,972 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 367 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 11:46:39,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1582 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 11:46:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-12 11:46:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 555. [2024-11-12 11:46:39,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 543 states have (on average 1.3186003683241252) internal successors, (716), 544 states have internal predecessors, (716), 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) [2024-11-12 11:46:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 737 transitions. [2024-11-12 11:46:39,991 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 737 transitions. Word has length 189 [2024-11-12 11:46:39,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 11:46:39,992 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 737 transitions. [2024-11-12 11:46:39,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 11:46:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 737 transitions. [2024-11-12 11:46:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-12 11:46:39,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 11:46:39,994 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 11:46:40,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 11:46:40,194 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 [2024-11-12 11:46:40,195 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 11:46:40,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 11:46:40,195 INFO L85 PathProgramCache]: Analyzing trace with hash -986473756, now seen corresponding path program 1 times [2024-11-12 11:46:40,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 11:46:40,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773602556] [2024-11-12 11:46:40,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 11:46:40,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 11:46:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat