./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e02e3162d4ac684b0ff9ed860eab65b0ec801c533748a64b9c6f0865c039d56 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:07:08,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:07:08,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:07:08,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:07:08,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:07:08,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:07:08,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:07:08,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:07:08,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:07:08,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:07:08,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:07:08,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:07:08,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:07:08,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:07:08,551 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:07:08,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:07:08,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:07:08,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:07:08,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:07:08,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:07:08,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:07:08,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:07:08,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:07:08,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:07:08,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:07:08,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:07:08,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:07:08,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:07:08,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:07:08,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:07:08,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:07:08,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:07:08,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:07:08,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:07:08,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:07:08,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:07:08,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e02e3162d4ac684b0ff9ed860eab65b0ec801c533748a64b9c6f0865c039d56 [2024-10-14 14:07:08,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:07:08,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:07:08,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:07:08,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:07:08,855 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:07:08,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i [2024-10-14 14:07:10,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:07:10,348 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:07:10,351 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i [2024-10-14 14:07:10,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6af814e0/a340910b880e42f1912c050d6eb6c504/FLAG18d3b6cb8 [2024-10-14 14:07:10,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6af814e0/a340910b880e42f1912c050d6eb6c504 [2024-10-14 14:07:10,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:07:10,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:07:10,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:07:10,377 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:07:10,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:07:10,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ee6b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10, skipping insertion in model container [2024-10-14 14:07:10,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:07:10,542 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i[917,930] [2024-10-14 14:07:10,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:07:10,610 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:07:10,619 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/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-43.i[917,930] [2024-10-14 14:07:10,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:07:10,691 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:07:10,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10 WrapperNode [2024-10-14 14:07:10,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:07:10,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:07:10,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:07:10,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:07:10,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,770 INFO L138 Inliner]: procedures = 29, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2024-10-14 14:07:10,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:07:10,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:07:10,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:07:10,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:07:10,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,828 INFO L175 MemorySlicer]: Split 144 memory accesses to 2 slices as follows [2, 142]. 99 percent of accesses are in the largest equivalence class. The 20 initializations are split as follows [2, 18]. The 21 writes are split as follows [0, 21]. [2024-10-14 14:07:10,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,853 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:07:10,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:07:10,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:07:10,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:07:10,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (1/1) ... [2024-10-14 14:07:10,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:07:10,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:07:10,900 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) [2024-10-14 14:07:10,903 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 [2024-10-14 14:07:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:07:10,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 14:07:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 14:07:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 14:07:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 14:07:10,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-14 14:07:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-14 14:07:10,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 14:07:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 14:07:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-14 14:07:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-14 14:07:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 14:07:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 14:07:10,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:07:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 14:07:10,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:07:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:07:11,074 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:07:11,076 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:07:11,529 INFO L? ?]: Removed 133 outVars from TransFormulas that were not future-live. [2024-10-14 14:07:11,529 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:07:11,593 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:07:11,593 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 14:07:11,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:07:11 BoogieIcfgContainer [2024-10-14 14:07:11,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:07:11,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:07:11,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:07:11,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:07:11,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:07:10" (1/3) ... [2024-10-14 14:07:11,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:07:11, skipping insertion in model container [2024-10-14 14:07:11,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:07:10" (2/3) ... [2024-10-14 14:07:11,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1006530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:07:11, skipping insertion in model container [2024-10-14 14:07:11,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:07:11" (3/3) ... [2024-10-14 14:07:11,608 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-43.i [2024-10-14 14:07:11,622 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:07:11,622 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:07:11,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:07:11,673 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;@5c4a3f82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:07:11,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 14:07:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 96 states have internal predecessors, (139), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:07:11,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 14:07:11,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:07:11,687 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:07:11,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:07:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:07:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash 722143837, now seen corresponding path program 1 times [2024-10-14 14:07:11,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:07:11,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410241560] [2024-10-14 14:07:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:11,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:07:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 14:07:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:07:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 14:07:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:07:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:07:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:07:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:07:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:07:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:07:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:07:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:07:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:07:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:07:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:07:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:07:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:07:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:07:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:07:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:07:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:07:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,124 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:07:12,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:07:12,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410241560] [2024-10-14 14:07:12,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410241560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:07:12,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:07:12,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 14:07:12,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949771863] [2024-10-14 14:07:12,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:07:12,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 14:07:12,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:07:12,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 14:07:12,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 14:07:12,162 INFO L87 Difference]: Start difference. First operand has 118 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 96 states have internal predecessors, (139), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:07:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:07:12,199 INFO L93 Difference]: Finished difference Result 233 states and 376 transitions. [2024-10-14 14:07:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 14:07:12,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-10-14 14:07:12,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:07:12,211 INFO L225 Difference]: With dead ends: 233 [2024-10-14 14:07:12,211 INFO L226 Difference]: Without dead ends: 116 [2024-10-14 14:07:12,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 14:07:12,223 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 14:07:12,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 14:07:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-14 14:07:12,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-10-14 14:07:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 94 states have (on average 1.425531914893617) internal successors, (134), 94 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:07:12,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 174 transitions. [2024-10-14 14:07:12,279 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 174 transitions. Word has length 162 [2024-10-14 14:07:12,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:07:12,280 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 174 transitions. [2024-10-14 14:07:12,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-14 14:07:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 174 transitions. [2024-10-14 14:07:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 14:07:12,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:07:12,284 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:07:12,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:07:12,285 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:07:12,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:07:12,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1114224061, now seen corresponding path program 1 times [2024-10-14 14:07:12,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:07:12,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071914389] [2024-10-14 14:07:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:12,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:07:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 14:07:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:07:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 14:07:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:07:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:07:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:07:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:07:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:07:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:07:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:07:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:07:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:07:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:07:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:07:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:07:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:07:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:07:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:07:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:07:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:07:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:07:12,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:07:12,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071914389] [2024-10-14 14:07:12,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071914389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:07:12,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:07:12,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:07:12,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710220486] [2024-10-14 14:07:12,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:07:12,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:07:12,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:07:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:07:12,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:07:12,696 INFO L87 Difference]: Start difference. First operand 116 states and 174 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:07:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:07:12,756 INFO L93 Difference]: Finished difference Result 234 states and 351 transitions. [2024-10-14 14:07:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 14:07:12,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-10-14 14:07:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:07:12,759 INFO L225 Difference]: With dead ends: 234 [2024-10-14 14:07:12,759 INFO L226 Difference]: Without dead ends: 119 [2024-10-14 14:07:12,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:07:12,760 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 14:07:12,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 14:07:12,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-14 14:07:12,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2024-10-14 14:07:12,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 96 states have internal predecessors, (136), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:07:12,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 176 transitions. [2024-10-14 14:07:12,770 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 176 transitions. Word has length 162 [2024-10-14 14:07:12,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:07:12,772 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 176 transitions. [2024-10-14 14:07:12,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:07:12,772 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 176 transitions. [2024-10-14 14:07:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 14:07:12,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:07:12,776 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:07:12,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:07:12,776 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:07:12,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:07:12,777 INFO L85 PathProgramCache]: Analyzing trace with hash 304877435, now seen corresponding path program 1 times [2024-10-14 14:07:12,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:07:12,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199059687] [2024-10-14 14:07:12,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:12,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:07:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 14:07:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:07:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 14:07:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:07:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:07:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:07:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:07:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:07:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:12,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:07:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:07:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:07:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:07:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:07:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:07:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:07:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:07:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:07:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:07:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:07:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:07:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-14 14:07:13,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:07:13,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199059687] [2024-10-14 14:07:13,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199059687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:07:13,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:07:13,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 14:07:13,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68963689] [2024-10-14 14:07:13,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:07:13,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:07:13,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:07:13,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:07:13,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:07:13,051 INFO L87 Difference]: Start difference. First operand 118 states and 176 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:07:13,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 14:07:13,100 INFO L93 Difference]: Finished difference Result 238 states and 355 transitions. [2024-10-14 14:07:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 14:07:13,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-10-14 14:07:13,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 14:07:13,106 INFO L225 Difference]: With dead ends: 238 [2024-10-14 14:07:13,106 INFO L226 Difference]: Without dead ends: 121 [2024-10-14 14:07:13,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:07:13,109 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 14:07:13,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 494 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 14:07:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-14 14:07:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-10-14 14:07:13,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 98 states have (on average 1.4081632653061225) internal successors, (138), 98 states have internal predecessors, (138), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-14 14:07:13,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 178 transitions. [2024-10-14 14:07:13,119 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 178 transitions. Word has length 162 [2024-10-14 14:07:13,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 14:07:13,119 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 178 transitions. [2024-10-14 14:07:13,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-14 14:07:13,120 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 178 transitions. [2024-10-14 14:07:13,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 14:07:13,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 14:07:13,122 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:07:13,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:07:13,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 14:07:13,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:07:13,123 INFO L85 PathProgramCache]: Analyzing trace with hash 362135737, now seen corresponding path program 1 times [2024-10-14 14:07:13,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:07:13,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593361137] [2024-10-14 14:07:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:13,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:07:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 14:07:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 14:07:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 14:07:14,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 14:07:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-14 14:07:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 14:07:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 14:07:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 14:07:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 14:07:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 14:07:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 14:07:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 14:07:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 14:07:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 14:07:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 14:07:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 14:07:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 14:07:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 14:07:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 14:07:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 14:07:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:14,973 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-14 14:07:14,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:07:14,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593361137] [2024-10-14 14:07:14,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593361137] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:07:14,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772436809] [2024-10-14 14:07:14,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:07:14,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:07:14,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:07:14,976 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) [2024-10-14 14:07:14,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 14:07:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:07:15,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-14 14:07:15,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:07:17,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-14 14:07:18,120 INFO L349 Elim1Store]: treesize reduction 25, result has 41.9 percent of original size [2024-10-14 14:07:18,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 45 [2024-10-14 14:07:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:18,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:18,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:18,155 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-10-14 14:07:18,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 29 [2024-10-14 14:07:18,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:18,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:18,203 INFO L349 Elim1Store]: treesize reduction 46, result has 37.0 percent of original size [2024-10-14 14:07:18,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 46 [2024-10-14 14:07:19,048 INFO L349 Elim1Store]: treesize reduction 230, result has 27.2 percent of original size [2024-10-14 14:07:19,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 169 treesize of output 211 [2024-10-14 14:07:19,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:19,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 14:07:34,043 WARN L286 SmtUtils]: Spent 14.26s on a formula simplification. DAG size of input: 1421 DAG size of output: 519 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-10-14 14:07:34,044 INFO L349 Elim1Store]: treesize reduction 4313, result has 18.5 percent of original size [2024-10-14 14:07:34,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 8 stores, 17 select indices, 17 select index equivalence classes, 2 disjoint index pairs (out of 136 index pairs), introduced 25 new quantified variables, introduced 256 case distinctions, treesize of input 322 treesize of output 1571