./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 15:48:35,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 15:48:35,988 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 15:48:35,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 15:48:35,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 15:48:36,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 15:48:36,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 15:48:36,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 15:48:36,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 15:48:36,020 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 15:48:36,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 15:48:36,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 15:48:36,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 15:48:36,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 15:48:36,022 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 15:48:36,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 15:48:36,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 15:48:36,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 15:48:36,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 15:48:36,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 15:48:36,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 15:48:36,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 15:48:36,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 15:48:36,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 15:48:36,026 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 15:48:36,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 15:48:36,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 15:48:36,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 15:48:36,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 15:48:36,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 15:48:36,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 15:48:36,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 15:48:36,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 15:48:36,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 15:48:36,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 15:48:36,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 15:48:36,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 15:48:36,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 15:48:36,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 15:48:36,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 15:48:36,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 15:48:36,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 15:48:36,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4caa1f295436b297cae57f4102149db941e37f67b5d377cc8e9aa7b58bbf9350 [2024-11-11 15:48:36,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 15:48:36,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 15:48:36,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 15:48:36,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 15:48:36,299 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 15:48:36,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-11-11 15:48:37,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 15:48:37,794 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 15:48:37,795 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2024-11-11 15:48:37,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b60f22c4/616043631d0b457bb27ce62b86d6a4b9/FLAG9aa7f86fd [2024-11-11 15:48:37,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b60f22c4/616043631d0b457bb27ce62b86d6a4b9 [2024-11-11 15:48:37,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 15:48:37,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 15:48:37,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 15:48:37,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 15:48:37,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 15:48:37,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:48:37" (1/1) ... [2024-11-11 15:48:37,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59200b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:37, skipping insertion in model container [2024-11-11 15:48:37,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 03:48:37" (1/1) ... [2024-11-11 15:48:37,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 15:48:38,017 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c[415,428] [2024-11-11 15:48:38,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 15:48:38,043 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 15:48:38,053 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c[415,428] [2024-11-11 15:48:38,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 15:48:38,075 INFO L204 MainTranslator]: Completed translation [2024-11-11 15:48:38,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38 WrapperNode [2024-11-11 15:48:38,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 15:48:38,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 15:48:38,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 15:48:38,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 15:48:38,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,104 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-11-11 15:48:38,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 15:48:38,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 15:48:38,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 15:48:38,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 15:48:38,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,124 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]. [2024-11-11 15:48:38,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 15:48:38,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 15:48:38,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 15:48:38,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 15:48:38,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (1/1) ... [2024-11-11 15:48:38,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 15:48:38,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:48:38,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 15:48:38,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 15:48:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 15:48:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-11 15:48:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-11 15:48:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 15:48:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 15:48:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 15:48:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 15:48:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-11 15:48:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-11 15:48:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-11 15:48:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-11 15:48:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-11 15:48:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 15:48:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 15:48:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-11 15:48:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-11 15:48:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-11 15:48:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-11 15:48:38,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-11 15:48:38,285 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 15:48:38,287 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 15:48:38,399 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-11 15:48:38,399 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 15:48:38,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 15:48:38,410 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-11 15:48:38,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:48:38 BoogieIcfgContainer [2024-11-11 15:48:38,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 15:48:38,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 15:48:38,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 15:48:38,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 15:48:38,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 03:48:37" (1/3) ... [2024-11-11 15:48:38,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116d109b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:48:38, skipping insertion in model container [2024-11-11 15:48:38,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 03:48:38" (2/3) ... [2024-11-11 15:48:38,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116d109b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 03:48:38, skipping insertion in model container [2024-11-11 15:48:38,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 03:48:38" (3/3) ... [2024-11-11 15:48:38,417 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2024-11-11 15:48:38,435 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 15:48:38,435 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 15:48:38,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 15:48:38,480 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;@44389d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 15:48:38,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 15:48:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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) [2024-11-11 15:48:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-11 15:48:38,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:48:38,488 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:48:38,488 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:48:38,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:48:38,492 INFO L85 PathProgramCache]: Analyzing trace with hash 626460765, now seen corresponding path program 1 times [2024-11-11 15:48:38,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:48:38,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356368787] [2024-11-11 15:48:38,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:48:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:48:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 15:48:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:48:38,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356368787] [2024-11-11 15:48:38,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356368787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 15:48:38,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 15:48:38,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 15:48:38,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754057996] [2024-11-11 15:48:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 15:48:38,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 15:48:38,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:48:38,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 15:48:38,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 15:48:38,757 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.45) internal successors, (29), 21 states have internal predecessors, (29), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 15:48:38,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:48:38,839 INFO L93 Difference]: Finished difference Result 58 states and 89 transitions. [2024-11-11 15:48:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 15:48:38,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-11 15:48:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:48:38,847 INFO L225 Difference]: With dead ends: 58 [2024-11-11 15:48:38,847 INFO L226 Difference]: Without dead ends: 30 [2024-11-11 15:48:38,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 15:48:38,852 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 32 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:48:38,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 26 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:48:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-11 15:48:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2024-11-11 15:48:38,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-11 15:48:38,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-11 15:48:38,885 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 9 [2024-11-11 15:48:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:48:38,886 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-11 15:48:38,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 15:48:38,886 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-11 15:48:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-11 15:48:38,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:48:38,887 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:48:38,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 15:48:38,888 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:48:38,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:48:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash -646764164, now seen corresponding path program 1 times [2024-11-11 15:48:38,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:48:38,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236484983] [2024-11-11 15:48:38,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:48:38,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:48:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:39,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 15:48:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:39,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 15:48:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:39,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 15:48:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 15:48:39,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:48:39,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236484983] [2024-11-11 15:48:39,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236484983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:48:39,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501777917] [2024-11-11 15:48:39,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:48:39,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:48:39,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:48:39,179 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:48:39,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 15:48:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:39,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 15:48:39,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:48:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 15:48:39,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:48:39,451 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 15:48:39,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501777917] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:48:39,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:48:39,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2024-11-11 15:48:39,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388954147] [2024-11-11 15:48:39,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:48:39,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 15:48:39,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:48:39,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 15:48:39,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-11 15:48:39,457 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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) [2024-11-11 15:48:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:48:39,608 INFO L93 Difference]: Finished difference Result 72 states and 92 transitions. [2024-11-11 15:48:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 15:48:39,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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 29 [2024-11-11 15:48:39,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:48:39,610 INFO L225 Difference]: With dead ends: 72 [2024-11-11 15:48:39,610 INFO L226 Difference]: Without dead ends: 61 [2024-11-11 15:48:39,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-11 15:48:39,613 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 121 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 15:48:39,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 28 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 15:48:39,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-11 15:48:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2024-11-11 15:48:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 34 states have (on average 1.088235294117647) internal successors, (37), 34 states have internal predecessors, (37), 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) [2024-11-11 15:48:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 61 transitions. [2024-11-11 15:48:39,623 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 61 transitions. Word has length 29 [2024-11-11 15:48:39,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:48:39,624 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 61 transitions. [2024-11-11 15:48:39,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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) [2024-11-11 15:48:39,624 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2024-11-11 15:48:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-11 15:48:39,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:48:39,626 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:48:39,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 15:48:39,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:48:39,827 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:48:39,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:48:39,828 INFO L85 PathProgramCache]: Analyzing trace with hash 727344985, now seen corresponding path program 2 times [2024-11-11 15:48:39,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:48:39,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037597761] [2024-11-11 15:48:39,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:48:39,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:48:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 15:48:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 15:48:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 15:48:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 15:48:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 15:48:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 15:48:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 15:48:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-11 15:48:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 15:48:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 15:48:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 15:48:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 15:48:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-11 15:48:40,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:48:40,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037597761] [2024-11-11 15:48:40,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037597761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:48:40,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421983164] [2024-11-11 15:48:40,082 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-11 15:48:40,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:48:40,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:48:40,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:48:40,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 15:48:40,164 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-11 15:48:40,164 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:48:40,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 15:48:40,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:48:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-11 15:48:40,462 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:48:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-11 15:48:40,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421983164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:48:40,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:48:40,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 19 [2024-11-11 15:48:40,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808294173] [2024-11-11 15:48:40,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:48:40,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-11 15:48:40,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:48:40,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-11 15:48:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=195, Unknown=0, NotChecked=0, Total=342 [2024-11-11 15:48:40,637 INFO L87 Difference]: Start difference. First operand 48 states and 61 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-11-11 15:48:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:48:40,913 INFO L93 Difference]: Finished difference Result 162 states and 206 transitions. [2024-11-11 15:48:40,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-11 15:48:40,913 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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 89 [2024-11-11 15:48:40,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:48:40,915 INFO L225 Difference]: With dead ends: 162 [2024-11-11 15:48:40,915 INFO L226 Difference]: Without dead ends: 145 [2024-11-11 15:48:40,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=222, Invalid=330, Unknown=0, NotChecked=0, Total=552 [2024-11-11 15:48:40,916 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 275 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 15:48:40,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 69 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 15:48:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-11 15:48:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2024-11-11 15:48:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 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) [2024-11-11 15:48:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 127 transitions. [2024-11-11 15:48:40,943 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 127 transitions. Word has length 89 [2024-11-11 15:48:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:48:40,944 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 127 transitions. [2024-11-11 15:48:40,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 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) [2024-11-11 15:48:40,945 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 127 transitions. [2024-11-11 15:48:40,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-11 15:48:40,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:48:40,950 INFO L218 NwaCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:48:40,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 15:48:41,155 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,SelfDestructingSolverStorable2 [2024-11-11 15:48:41,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:48:41,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:48:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash -143599021, now seen corresponding path program 3 times [2024-11-11 15:48:41,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:48:41,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190991014] [2024-11-11 15:48:41,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:48:41,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:48:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 15:48:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 15:48:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 15:48:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 15:48:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 15:48:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 15:48:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 15:48:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-11 15:48:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 15:48:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 15:48:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 15:48:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 15:48:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 15:48:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 15:48:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 15:48:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 15:48:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 15:48:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 15:48:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 15:48:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 15:48:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 15:48:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 15:48:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 15:48:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 15:48:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-11 15:48:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-11 15:48:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-11 15:48:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-11 15:48:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-11 15:48:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 15:48:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2024-11-11 15:48:41,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:48:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190991014] [2024-11-11 15:48:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190991014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:48:41,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384639171] [2024-11-11 15:48:41,644 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-11 15:48:41,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:48:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:48:41,646 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:48:41,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 15:48:41,868 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-11 15:48:41,868 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-11 15:48:41,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 15:48:41,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 15:48:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-11-11 15:48:42,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 15:48:42,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2024-11-11 15:48:42,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384639171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 15:48:42,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 15:48:42,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 37 [2024-11-11 15:48:42,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074599362] [2024-11-11 15:48:42,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 15:48:42,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-11 15:48:42,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 15:48:42,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-11 15:48:42,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2024-11-11 15:48:42,644 INFO L87 Difference]: Start difference. First operand 96 states and 127 transitions. Second operand has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 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) [2024-11-11 15:48:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 15:48:43,271 INFO L93 Difference]: Finished difference Result 342 states and 434 transitions. [2024-11-11 15:48:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-11 15:48:43,272 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 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 209 [2024-11-11 15:48:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 15:48:43,274 INFO L225 Difference]: With dead ends: 342 [2024-11-11 15:48:43,274 INFO L226 Difference]: Without dead ends: 313 [2024-11-11 15:48:43,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2024-11-11 15:48:43,276 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 588 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 15:48:43,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 137 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 15:48:43,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-11 15:48:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 192. [2024-11-11 15:48:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 124 states have (on average 1.0241935483870968) internal successors, (127), 124 states have internal predecessors, (127), 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) [2024-11-11 15:48:43,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 259 transitions. [2024-11-11 15:48:43,305 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 259 transitions. Word has length 209 [2024-11-11 15:48:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 15:48:43,305 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 259 transitions. [2024-11-11 15:48:43,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.7567567567567566) internal successors, (102), 37 states have internal predecessors, (102), 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) [2024-11-11 15:48:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 259 transitions. [2024-11-11 15:48:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-11 15:48:43,312 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 15:48:43,312 INFO L218 NwaCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 15:48:43,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 15:48:43,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:48:43,513 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 15:48:43,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 15:48:43,514 INFO L85 PathProgramCache]: Analyzing trace with hash -94380729, now seen corresponding path program 4 times [2024-11-11 15:48:43,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 15:48:43,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249447577] [2024-11-11 15:48:43,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 15:48:43,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 15:48:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-11 15:48:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 15:48:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 15:48:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-11 15:48:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 15:48:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 15:48:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 15:48:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-11 15:48:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 15:48:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 15:48:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 15:48:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 15:48:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 15:48:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 15:48:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 15:48:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 15:48:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 15:48:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 15:48:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 15:48:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 15:48:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 15:48:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 15:48:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 15:48:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 15:48:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-11 15:48:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-11 15:48:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-11 15:48:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-11 15:48:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-11 15:48:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-11 15:48:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-11 15:48:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-11 15:48:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-11 15:48:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-11 15:48:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-11 15:48:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2024-11-11 15:48:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-11-11 15:48:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-11 15:48:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-11-11 15:48:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-11 15:48:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-11 15:48:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-11-11 15:48:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2024-11-11 15:48:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-11 15:48:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-11 15:48:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-11-11 15:48:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2024-11-11 15:48:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2024-11-11 15:48:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2024-11-11 15:48:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2024-11-11 15:48:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-11-11 15:48:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2024-11-11 15:48:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-11 15:48:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2024-11-11 15:48:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2024-11-11 15:48:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-11 15:48:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-11-11 15:48:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-11 15:48:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-11 15:48:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-11 15:48:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2024-11-11 15:48:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-11 15:48:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-11-11 15:48:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2024-11-11 15:48:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-11-11 15:48:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2024-11-11 15:48:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 15:48:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2024-11-11 15:48:44,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 15:48:44,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249447577] [2024-11-11 15:48:44,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249447577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 15:48:44,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545556204] [2024-11-11 15:48:44,795 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-11 15:48:44,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 15:48:44,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 15:48:44,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 15:48:44,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process