./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c -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 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-13 22:26:45,115 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 22:26:45,180 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 22:26:45,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 22:26:45,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 22:26:45,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 22:26:45,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 22:26:45,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 22:26:45,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 22:26:45,223 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 22:26:45,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 22:26:45,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 22:26:45,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 22:26:45,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 22:26:45,224 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 22:26:45,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 22:26:45,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 22:26:45,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 22:26:45,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 22:26:45,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 22:26:45,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 22:26:45,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 22:26:45,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 22:26:45,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 22:26:45,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 22:26:45,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 22:26:45,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 22:26:45,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 22:26:45,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 22:26:45,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 22:26:45,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 22:26:45,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 22:26:45,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 22:26:45,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 22:26:45,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 22:26:45,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 22:26:45,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2024-10-13 22:26:45,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 22:26:45,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 22:26:45,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 22:26:45,440 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 22:26:45,441 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 22:26:45,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-10-13 22:26:46,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 22:26:46,837 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 22:26:46,838 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-10-13 22:26:46,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0440bdcee/1dfdd953d91a44ef9b0a3d03f9d976af/FLAG1e4a95fce [2024-10-13 22:26:46,857 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0440bdcee/1dfdd953d91a44ef9b0a3d03f9d976af [2024-10-13 22:26:46,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 22:26:46,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 22:26:46,860 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 22:26:46,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 22:26:46,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 22:26:46,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:26:46" (1/1) ... [2024-10-13 22:26:46,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f165e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:46, skipping insertion in model container [2024-10-13 22:26:46,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:26:46" (1/1) ... [2024-10-13 22:26:46,881 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 22:26:46,990 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c[415,428] [2024-10-13 22:26:47,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 22:26:47,014 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 22:26:47,024 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c[415,428] [2024-10-13 22:26:47,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 22:26:47,048 INFO L204 MainTranslator]: Completed translation [2024-10-13 22:26:47,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47 WrapperNode [2024-10-13 22:26:47,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 22:26:47,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 22:26:47,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 22:26:47,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 22:26:47,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,079 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-10-13 22:26:47,080 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 22:26:47,080 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 22:26:47,080 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 22:26:47,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 22:26:47,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,101 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-10-13 22:26:47,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 22:26:47,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 22:26:47,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 22:26:47,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 22:26:47,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (1/1) ... [2024-10-13 22:26:47,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 22:26:47,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:26:47,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 22:26:47,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 22:26:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 22:26:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 22:26:47,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 22:26:47,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 22:26:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 22:26:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 22:26:47,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 22:26:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 22:26:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 22:26:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 22:26:47,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 22:26:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 22:26:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 22:26:47,258 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 22:26:47,260 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 22:26:47,388 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-13 22:26:47,388 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 22:26:47,414 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 22:26:47,414 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-13 22:26:47,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:26:47 BoogieIcfgContainer [2024-10-13 22:26:47,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 22:26:47,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 22:26:47,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 22:26:47,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 22:26:47,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:26:46" (1/3) ... [2024-10-13 22:26:47,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44adaafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:26:47, skipping insertion in model container [2024-10-13 22:26:47,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:26:47" (2/3) ... [2024-10-13 22:26:47,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44adaafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:26:47, skipping insertion in model container [2024-10-13 22:26:47,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:26:47" (3/3) ... [2024-10-13 22:26:47,422 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2024-10-13 22:26:47,433 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 22:26:47,434 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 22:26:47,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 22:26:47,476 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;@72a1fa7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 22:26:47,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 22:26:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 22:26:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 22:26:47,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:26:47,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:26:47,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:26:47,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:26:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1394429076, now seen corresponding path program 1 times [2024-10-13 22:26:47,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:26:47,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331462881] [2024-10-13 22:26:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:47,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:26:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 22:26:47,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:26:47,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331462881] [2024-10-13 22:26:47,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331462881] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:26:47,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:26:47,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 22:26:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549313494] [2024-10-13 22:26:47,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:26:47,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 22:26:47,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:26:47,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 22:26:47,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:26:47,733 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-10-13 22:26:47,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:26:47,781 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2024-10-13 22:26:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 22:26:47,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2024-10-13 22:26:47,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:26:47,789 INFO L225 Difference]: With dead ends: 44 [2024-10-13 22:26:47,789 INFO L226 Difference]: Without dead ends: 23 [2024-10-13 22:26:47,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 22:26:47,795 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 22:26:47,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 22:26:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-13 22:26:47,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2024-10-13 22:26:47,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 22:26:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-10-13 22:26:47,824 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 8 [2024-10-13 22:26:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:26:47,825 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-10-13 22:26:47,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-10-13 22:26:47,825 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-10-13 22:26:47,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-13 22:26:47,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:26:47,827 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:26:47,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 22:26:47,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:26:47,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:26:47,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1234834936, now seen corresponding path program 1 times [2024-10-13 22:26:47,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:26:47,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269952820] [2024-10-13 22:26:47,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:47,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:26:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 22:26:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 22:26:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 22:26:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-13 22:26:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:26:48,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269952820] [2024-10-13 22:26:48,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269952820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 22:26:48,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 22:26:48,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 22:26:48,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878328429] [2024-10-13 22:26:48,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 22:26:48,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 22:26:48,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:26:48,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 22:26:48,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 22:26:48,026 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 22:26:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:26:48,087 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2024-10-13 22:26:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 22:26:48,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-13 22:26:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:26:48,089 INFO L225 Difference]: With dead ends: 30 [2024-10-13 22:26:48,089 INFO L226 Difference]: Without dead ends: 24 [2024-10-13 22:26:48,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 22:26:48,091 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 22:26:48,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 17 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 22:26:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-13 22:26:48,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2024-10-13 22:26:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 22:26:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-10-13 22:26:48,100 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 25 [2024-10-13 22:26:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:26:48,100 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-10-13 22:26:48,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 22:26:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-10-13 22:26:48,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 22:26:48,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:26:48,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:26:48,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 22:26:48,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:26:48,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:26:48,104 INFO L85 PathProgramCache]: Analyzing trace with hash 934488912, now seen corresponding path program 1 times [2024-10-13 22:26:48,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:26:48,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979311740] [2024-10-13 22:26:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:48,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:26:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 22:26:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 22:26:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 22:26:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,249 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-13 22:26:48,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:26:48,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979311740] [2024-10-13 22:26:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979311740] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 22:26:48,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838466414] [2024-10-13 22:26:48,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:48,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 22:26:48,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:26:48,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 22:26:48,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 22:26:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 22:26:48,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 22:26:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-13 22:26:48,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 22:26:48,452 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-13 22:26:48,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838466414] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 22:26:48,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 22:26:48,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-13 22:26:48,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785836438] [2024-10-13 22:26:48,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 22:26:48,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 22:26:48,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:26:48,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 22:26:48,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-10-13 22:26:48,454 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-13 22:26:48,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:26:48,555 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-10-13 22:26:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 22:26:48,556 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 26 [2024-10-13 22:26:48,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:26:48,557 INFO L225 Difference]: With dead ends: 58 [2024-10-13 22:26:48,557 INFO L226 Difference]: Without dead ends: 49 [2024-10-13 22:26:48,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2024-10-13 22:26:48,558 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 60 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 22:26:48,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 29 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 22:26:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-13 22:26:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2024-10-13 22:26:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 22:26:48,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-10-13 22:26:48,571 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 26 [2024-10-13 22:26:48,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:26:48,571 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-10-13 22:26:48,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 3 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-13 22:26:48,572 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-10-13 22:26:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-13 22:26:48,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:26:48,573 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:26:48,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 22:26:48,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 22:26:48,778 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:26:48,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:26:48,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1525972372, now seen corresponding path program 2 times [2024-10-13 22:26:48,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:26:48,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036406744] [2024-10-13 22:26:48,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:48,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:26:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 22:26:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 22:26:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 22:26:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 22:26:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 22:26:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 22:26:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 22:26:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 22:26:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:48,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 22:26:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 22:26:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 22:26:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:49,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 22:26:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:49,017 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-13 22:26:49,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:26:49,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036406744] [2024-10-13 22:26:49,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036406744] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 22:26:49,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155839196] [2024-10-13 22:26:49,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 22:26:49,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 22:26:49,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:26:49,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 22:26:49,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 22:26:49,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 22:26:49,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 22:26:49,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 22:26:49,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 22:26:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-13 22:26:49,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 22:26:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-13 22:26:49,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155839196] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 22:26:49,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 22:26:49,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-10-13 22:26:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460326239] [2024-10-13 22:26:49,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 22:26:49,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 22:26:49,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:26:49,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 22:26:49,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2024-10-13 22:26:49,435 INFO L87 Difference]: Start difference. First operand 38 states and 51 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-10-13 22:26:49,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:26:49,676 INFO L93 Difference]: Finished difference Result 127 states and 171 transitions. [2024-10-13 22:26:49,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 22:26:49,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 80 [2024-10-13 22:26:49,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:26:49,678 INFO L225 Difference]: With dead ends: 127 [2024-10-13 22:26:49,678 INFO L226 Difference]: Without dead ends: 115 [2024-10-13 22:26:49,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=298, Unknown=0, NotChecked=0, Total=506 [2024-10-13 22:26:49,680 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 162 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 22:26:49,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 59 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 22:26:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-13 22:26:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 74. [2024-10-13 22:26:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.0714285714285714) internal successors, (45), 42 states have internal predecessors, (45), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-13 22:26:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-13 22:26:49,695 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 80 [2024-10-13 22:26:49,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:26:49,696 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-13 22:26:49,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-10-13 22:26:49,697 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-13 22:26:49,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-13 22:26:49,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:26:49,703 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:26:49,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 22:26:49,904 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,SelfDestructingSolverStorable3 [2024-10-13 22:26:49,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:26:49,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:26:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1608222956, now seen corresponding path program 3 times [2024-10-13 22:26:49,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:26:49,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948330508] [2024-10-13 22:26:49,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:49,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:26:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 22:26:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 22:26:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 22:26:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 22:26:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 22:26:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 22:26:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 22:26:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 22:26:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 22:26:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 22:26:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 22:26:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 22:26:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 22:26:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 22:26:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 22:26:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 22:26:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 22:26:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 22:26:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 22:26:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 22:26:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 22:26:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-13 22:26:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 22:26:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 22:26:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 22:26:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-13 22:26:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 22:26:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-13 22:26:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 22:26:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-13 22:26:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:50,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked. [2024-10-13 22:26:50,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:26:50,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948330508] [2024-10-13 22:26:50,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948330508] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 22:26:50,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684338103] [2024-10-13 22:26:50,372 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 22:26:50,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 22:26:50,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:26:50,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 22:26:50,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 22:26:50,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-13 22:26:50,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 22:26:50,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 22:26:50,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 22:26:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2024-10-13 22:26:50,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 22:26:51,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2024-10-13 22:26:51,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684338103] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 22:26:51,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 22:26:51,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 37 [2024-10-13 22:26:51,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455303067] [2024-10-13 22:26:51,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 22:26:51,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-13 22:26:51,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 22:26:51,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-13 22:26:51,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 22:26:51,186 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand has 37 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 37 states have internal predecessors, (67), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-10-13 22:26:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 22:26:51,784 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2024-10-13 22:26:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-13 22:26:51,785 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 37 states have internal predecessors, (67), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 188 [2024-10-13 22:26:51,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 22:26:51,788 INFO L225 Difference]: With dead ends: 265 [2024-10-13 22:26:51,790 INFO L226 Difference]: Without dead ends: 247 [2024-10-13 22:26:51,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2024-10-13 22:26:51,792 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 438 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 22:26:51,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 104 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 22:26:51,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-13 22:26:51,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 146. [2024-10-13 22:26:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 78 states have (on average 1.0384615384615385) internal successors, (81), 78 states have internal predecessors, (81), 66 states have call successors, (66), 1 states have call predecessors, (66), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-13 22:26:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions. [2024-10-13 22:26:51,843 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 188 [2024-10-13 22:26:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 22:26:51,844 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 213 transitions. [2024-10-13 22:26:51,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 37 states have internal predecessors, (67), 12 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-10-13 22:26:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions. [2024-10-13 22:26:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-10-13 22:26:51,850 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 22:26:51,851 INFO L215 NwaCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 22:26:51,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 22:26:52,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 22:26:52,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 22:26:52,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 22:26:52,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1358804460, now seen corresponding path program 4 times [2024-10-13 22:26:52,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 22:26:52,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923062248] [2024-10-13 22:26:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 22:26:52,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 22:26:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 22:26:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 22:26:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 22:26:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 22:26:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 22:26:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 22:26:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 22:26:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 22:26:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-13 22:26:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 22:26:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 22:26:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 22:26:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-13 22:26:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-13 22:26:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 22:26:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-13 22:26:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 22:26:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 22:26:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 22:26:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-13 22:26:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-13 22:26:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-13 22:26:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-13 22:26:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-13 22:26:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-13 22:26:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-13 22:26:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-13 22:26:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-13 22:26:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:52,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-13 22:26:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-13 22:26:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-13 22:26:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-13 22:26:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-13 22:26:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-13 22:26:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-13 22:26:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-13 22:26:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-13 22:26:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-13 22:26:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-13 22:26:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-13 22:26:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-13 22:26:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-13 22:26:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-13 22:26:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-13 22:26:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-13 22:26:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-13 22:26:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-13 22:26:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-13 22:26:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-10-13 22:26:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-13 22:26:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-10-13 22:26:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-13 22:26:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-13 22:26:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-10-13 22:26:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-13 22:26:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-10-13 22:26:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-10-13 22:26:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-10-13 22:26:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-10-13 22:26:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-10-13 22:26:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-13 22:26:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-10-13 22:26:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-13 22:26:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-13 22:26:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-13 22:26:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-13 22:26:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 22:26:53,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 8833 trivial. 0 not checked. [2024-10-13 22:26:53,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 22:26:53,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923062248] [2024-10-13 22:26:53,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923062248] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 22:26:53,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910272985] [2024-10-13 22:26:53,065 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 22:26:53,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 22:26:53,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 22:26:53,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 22:26:53,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process