./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 4a390ef5 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-dev-4a390ef-m [2024-10-23 20:01:01,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 20:01:01,149 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 20:01:01,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 20:01:01,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 20:01:01,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 20:01:01,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 20:01:01,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 20:01:01,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 20:01:01,180 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 20:01:01,180 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 20:01:01,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 20:01:01,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 20:01:01,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 20:01:01,183 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 20:01:01,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 20:01:01,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 20:01:01,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 20:01:01,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 20:01:01,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 20:01:01,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 20:01:01,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 20:01:01,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 20:01:01,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 20:01:01,189 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 20:01:01,189 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 20:01:01,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 20:01:01,189 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 20:01:01,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 20:01:01,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 20:01:01,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 20:01:01,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 20:01:01,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:01:01,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 20:01:01,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 20:01:01,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 20:01:01,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 20:01:01,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 20:01:01,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 20:01:01,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 20:01:01,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 20:01:01,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 20:01:01,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2024-10-23 20:01:01,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 20:01:01,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 20:01:01,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 20:01:01,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 20:01:01,428 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 20:01:01,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-10-23 20:01:02,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 20:01:02,820 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 20:01:02,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-10-23 20:01:02,826 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d097e92a/5cf9814498a94c2e99c4a48eb2d70f4f/FLAG629edd448 [2024-10-23 20:01:03,238 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d097e92a/5cf9814498a94c2e99c4a48eb2d70f4f [2024-10-23 20:01:03,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 20:01:03,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 20:01:03,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 20:01:03,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 20:01:03,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 20:01:03,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704e75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03, skipping insertion in model container [2024-10-23 20:01:03,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 20:01:03,396 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] [2024-10-23 20:01:03,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:01:03,418 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 20:01:03,427 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] [2024-10-23 20:01:03,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:01:03,446 INFO L204 MainTranslator]: Completed translation [2024-10-23 20:01:03,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03 WrapperNode [2024-10-23 20:01:03,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 20:01:03,447 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 20:01:03,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 20:01:03,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 20:01:03,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,468 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,488 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-10-23 20:01:03,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 20:01:03,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 20:01:03,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 20:01:03,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 20:01:03,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,516 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]. [2024-10-23 20:01:03,516 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,516 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,525 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 20:01:03,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 20:01:03,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 20:01:03,526 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 20:01:03,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (1/1) ... [2024-10-23 20:01:03,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:01:03,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:01:03,553 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) [2024-10-23 20:01:03,555 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 [2024-10-23 20:01:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 20:01:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-23 20:01:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-23 20:01:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 20:01:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-23 20:01:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-23 20:01:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 20:01:03,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-23 20:01:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-23 20:01:03,680 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 20:01:03,683 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 20:01:03,841 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-23 20:01:03,841 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 20:01:03,873 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 20:01:03,873 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-23 20:01:03,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:01:03 BoogieIcfgContainer [2024-10-23 20:01:03,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 20:01:03,877 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 20:01:03,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 20:01:03,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 20:01:03,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:01:03" (1/3) ... [2024-10-23 20:01:03,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fde2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:01:03, skipping insertion in model container [2024-10-23 20:01:03,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:01:03" (2/3) ... [2024-10-23 20:01:03,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fde2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:01:03, skipping insertion in model container [2024-10-23 20:01:03,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:01:03" (3/3) ... [2024-10-23 20:01:03,883 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2024-10-23 20:01:03,897 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 20:01:03,897 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 20:01:03,951 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 20:01:03,956 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;@565d84d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 20:01:03,956 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 20:01:03,959 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) [2024-10-23 20:01:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-23 20:01:03,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:01:03,964 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:01:03,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:01:03,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:01:03,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1394429076, now seen corresponding path program 1 times [2024-10-23 20:01:03,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:01:03,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252468760] [2024-10-23 20:01:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:03,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:01:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:01:04,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:01:04,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252468760] [2024-10-23 20:01:04,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252468760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:01:04,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:01:04,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:01:04,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293180735] [2024-10-23 20:01:04,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:01:04,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:01:04,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:01:04,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:01:04,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:01:04,202 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) [2024-10-23 20:01:04,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:01:04,258 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2024-10-23 20:01:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:01:04,260 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 [2024-10-23 20:01:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:01:04,264 INFO L225 Difference]: With dead ends: 44 [2024-10-23 20:01:04,264 INFO L226 Difference]: Without dead ends: 23 [2024-10-23 20:01:04,266 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 [2024-10-23 20:01:04,269 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 [2024-10-23 20:01:04,270 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] [2024-10-23 20:01:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-10-23 20:01:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2024-10-23 20:01:04,325 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) [2024-10-23 20:01:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2024-10-23 20:01:04,331 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 8 [2024-10-23 20:01:04,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:01:04,331 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2024-10-23 20:01:04,332 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) [2024-10-23 20:01:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-10-23 20:01:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-23 20:01:04,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:01:04,337 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:01:04,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 20:01:04,338 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:01:04,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:01:04,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1234834936, now seen corresponding path program 1 times [2024-10-23 20:01:04,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:01:04,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511689079] [2024-10-23 20:01:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:04,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:01:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-23 20:01:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 20:01:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-23 20:01:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,531 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-23 20:01:04,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:01:04,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511689079] [2024-10-23 20:01:04,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511689079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:01:04,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:01:04,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 20:01:04,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494820601] [2024-10-23 20:01:04,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:01:04,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 20:01:04,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:01:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 20:01:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 20:01:04,535 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) [2024-10-23 20:01:04,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:01:04,591 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2024-10-23 20:01:04,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 20:01:04,592 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 [2024-10-23 20:01:04,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:01:04,593 INFO L225 Difference]: With dead ends: 30 [2024-10-23 20:01:04,594 INFO L226 Difference]: Without dead ends: 24 [2024-10-23 20:01:04,594 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 [2024-10-23 20:01:04,596 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, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 20:01:04,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 17 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 20:01:04,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-23 20:01:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2024-10-23 20:01:04,604 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) [2024-10-23 20:01:04,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-10-23 20:01:04,606 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 25 [2024-10-23 20:01:04,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:01:04,606 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-10-23 20:01:04,607 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) [2024-10-23 20:01:04,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-10-23 20:01:04,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-23 20:01:04,608 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:01:04,608 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] [2024-10-23 20:01:04,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 20:01:04,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:01:04,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:01:04,609 INFO L85 PathProgramCache]: Analyzing trace with hash 934488912, now seen corresponding path program 1 times [2024-10-23 20:01:04,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:01:04,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084714718] [2024-10-23 20:01:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:04,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:01:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-23 20:01:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 20:01:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-23 20:01:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,727 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-23 20:01:04,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:01:04,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084714718] [2024-10-23 20:01:04,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084714718] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:01:04,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909903799] [2024-10-23 20:01:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:04,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:01:04,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:01:04,732 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) [2024-10-23 20:01:04,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 20:01:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:04,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-23 20:01:04,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:01:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-23 20:01:04,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 20:01:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-23 20:01:04,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909903799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 20:01:04,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 20:01:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-23 20:01:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391546485] [2024-10-23 20:01:04,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 20:01:04,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-23 20:01:04,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:01:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-23 20:01:04,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-10-23 20:01:04,959 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) [2024-10-23 20:01:05,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:01:05,093 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2024-10-23 20:01:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-23 20:01:05,094 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 [2024-10-23 20:01:05,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:01:05,095 INFO L225 Difference]: With dead ends: 58 [2024-10-23 20:01:05,096 INFO L226 Difference]: Without dead ends: 49 [2024-10-23 20:01:05,096 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 [2024-10-23 20:01:05,098 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 [2024-10-23 20:01:05,098 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] [2024-10-23 20:01:05,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-10-23 20:01:05,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2024-10-23 20:01:05,112 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) [2024-10-23 20:01:05,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-10-23 20:01:05,114 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 51 transitions. Word has length 26 [2024-10-23 20:01:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:01:05,114 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-10-23 20:01:05,114 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) [2024-10-23 20:01:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2024-10-23 20:01:05,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-23 20:01:05,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:01:05,117 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] [2024-10-23 20:01:05,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 20:01:05,318 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 [2024-10-23 20:01:05,319 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:01:05,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:01:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1525972372, now seen corresponding path program 2 times [2024-10-23 20:01:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:01:05,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629771806] [2024-10-23 20:01:05,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:05,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:01:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-23 20:01:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 20:01:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-23 20:01:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-23 20:01:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-23 20:01:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-23 20:01:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-23 20:01:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-23 20:01:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-23 20:01:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-23 20:01:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-23 20:01:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-23 20:01:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-23 20:01:05,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:01:05,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629771806] [2024-10-23 20:01:05,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629771806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:01:05,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64262749] [2024-10-23 20:01:05,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-23 20:01:05,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:01:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:01:05,596 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) [2024-10-23 20:01:05,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 20:01:05,682 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-23 20:01:05,682 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-23 20:01:05,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-23 20:01:05,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:01:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-23 20:01:05,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 20:01:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-23 20:01:06,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64262749] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 20:01:06,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 20:01:06,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-10-23 20:01:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537747179] [2024-10-23 20:01:06,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 20:01:06,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-23 20:01:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:01:06,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-23 20:01:06,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2024-10-23 20:01:06,030 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) [2024-10-23 20:01:06,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:01:06,333 INFO L93 Difference]: Finished difference Result 127 states and 171 transitions. [2024-10-23 20:01:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-23 20:01:06,334 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 [2024-10-23 20:01:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:01:06,336 INFO L225 Difference]: With dead ends: 127 [2024-10-23 20:01:06,337 INFO L226 Difference]: Without dead ends: 115 [2024-10-23 20:01:06,337 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 [2024-10-23 20:01:06,338 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 162 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2024-10-23 20:01:06,339 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] [2024-10-23 20:01:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-23 20:01:06,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 74. [2024-10-23 20:01:06,360 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) [2024-10-23 20:01:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2024-10-23 20:01:06,364 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 80 [2024-10-23 20:01:06,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:01:06,365 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2024-10-23 20:01:06,366 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) [2024-10-23 20:01:06,366 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2024-10-23 20:01:06,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-23 20:01:06,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:01:06,371 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] [2024-10-23 20:01:06,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 20:01:06,571 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 [2024-10-23 20:01:06,572 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:01:06,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:01:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1608222956, now seen corresponding path program 3 times [2024-10-23 20:01:06,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:01:06,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654531080] [2024-10-23 20:01:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:06,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:01:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:06,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-23 20:01:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:06,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 20:01:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:06,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-23 20:01:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:06,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-23 20:01:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:06,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-23 20:01:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-23 20:01:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-23 20:01:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-23 20:01:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-23 20:01:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-23 20:01:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-23 20:01:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-23 20:01:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-23 20:01:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-23 20:01:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-23 20:01:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-23 20:01:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-23 20:01:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-23 20:01:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-23 20:01:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-23 20:01:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-23 20:01:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-23 20:01:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-23 20:01:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-23 20:01:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-23 20:01:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-23 20:01:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-23 20:01:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-23 20:01:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-23 20:01:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-23 20:01:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 235 refuted. 0 times theorem prover too weak. 1795 trivial. 0 not checked. [2024-10-23 20:01:07,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:01:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654531080] [2024-10-23 20:01:07,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654531080] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:01:07,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875558278] [2024-10-23 20:01:07,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-23 20:01:07,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:01:07,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:01:07,079 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) [2024-10-23 20:01:07,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-23 20:01:07,225 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-23 20:01:07,225 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-23 20:01:07,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-23 20:01:07,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:01:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2024-10-23 20:01:07,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 20:01:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1975 trivial. 0 not checked. [2024-10-23 20:01:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875558278] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 20:01:07,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 20:01:07,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 37 [2024-10-23 20:01:07,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221742390] [2024-10-23 20:01:07,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 20:01:07,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-23 20:01:07,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:01:07,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-23 20:01:07,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2024-10-23 20:01:07,961 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) [2024-10-23 20:01:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:01:08,568 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2024-10-23 20:01:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-23 20:01:08,568 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 [2024-10-23 20:01:08,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:01:08,572 INFO L225 Difference]: With dead ends: 265 [2024-10-23 20:01:08,574 INFO L226 Difference]: Without dead ends: 247 [2024-10-23 20:01:08,575 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 [2024-10-23 20:01:08,575 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, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:01:08,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 104 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:01:08,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-23 20:01:08,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 146. [2024-10-23 20:01:08,606 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) [2024-10-23 20:01:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions. [2024-10-23 20:01:08,611 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 188 [2024-10-23 20:01:08,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:01:08,612 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 213 transitions. [2024-10-23 20:01:08,613 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) [2024-10-23 20:01:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions. [2024-10-23 20:01:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-10-23 20:01:08,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:01:08,625 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] [2024-10-23 20:01:08,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-23 20:01:08,825 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 [2024-10-23 20:01:08,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:01:08,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:01:08,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1358804460, now seen corresponding path program 4 times [2024-10-23 20:01:08,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:01:08,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314008688] [2024-10-23 20:01:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:01:08,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:01:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-23 20:01:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-23 20:01:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-23 20:01:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-23 20:01:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-23 20:01:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-23 20:01:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-23 20:01:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-23 20:01:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-23 20:01:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-23 20:01:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-23 20:01:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-23 20:01:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-23 20:01:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-23 20:01:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-23 20:01:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-23 20:01:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-23 20:01:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-23 20:01:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-23 20:01:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-23 20:01:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-23 20:01:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-23 20:01:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-23 20:01:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-23 20:01:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-23 20:01:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-23 20:01:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-23 20:01:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-23 20:01:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-23 20:01:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-10-23 20:01:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-23 20:01:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-23 20:01:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-10-23 20:01:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-10-23 20:01:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-23 20:01:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-23 20:01:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-10-23 20:01:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-10-23 20:01:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-23 20:01:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-23 20:01:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2024-10-23 20:01:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-10-23 20:01:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-23 20:01:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-23 20:01:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2024-10-23 20:01:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-23 20:01:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-23 20:01:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2024-10-23 20:01:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2024-10-23 20:01:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2024-10-23 20:01:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2024-10-23 20:01:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-10-23 20:01:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-10-23 20:01:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-10-23 20:01:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2024-10-23 20:01:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2024-10-23 20:01:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2024-10-23 20:01:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2024-10-23 20:01:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:09,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2024-10-23 20:01:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-10-23 20:01:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2024-10-23 20:01:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2024-10-23 20:01:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-23 20:01:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-23 20:01:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2024-10-23 20:01:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-23 20:01:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:01:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 10010 backedges. 0 proven. 1177 refuted. 0 times theorem prover too weak. 8833 trivial. 0 not checked. [2024-10-23 20:01:10,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:01:10,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314008688] [2024-10-23 20:01:10,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314008688] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:01:10,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594407225] [2024-10-23 20:01:10,031 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-23 20:01:10,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:01:10,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:01:10,033 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) [2024-10-23 20:01:10,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process