./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 04d6fb36 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 19:48:23,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 19:48:23,652 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 19:48:23,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 19:48:23,658 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 19:48:23,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 19:48:23,681 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 19:48:23,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 19:48:23,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 19:48:23,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 19:48:23,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 19:48:23,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 19:48:23,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 19:48:23,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 19:48:23,683 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 19:48:23,684 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 19:48:23,684 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 19:48:23,684 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 19:48:23,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 19:48:23,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 19:48:23,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 19:48:23,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 19:48:23,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 19:48:23,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 19:48:23,689 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 19:48:23,689 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 19:48:23,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 19:48:23,690 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 19:48:23,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 19:48:23,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 19:48:23,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 19:48:23,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 19:48:23,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 19:48:23,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 19:48:23,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 19:48:23,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 19:48:23,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 19:48:23,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 19:48:23,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 19:48:23,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 19:48:23,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 19:48:23,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 19:48:23,693 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-15 19:48:23,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 19:48:23,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 19:48:23,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 19:48:23,946 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 19:48:23,946 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 19:48:23,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-09-15 19:48:25,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 19:48:25,433 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 19:48:25,433 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-09-15 19:48:25,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d6d88d0f7/b0fbd43292114d819704ee8a694fd2b4/FLAG0e317dc89 [2024-09-15 19:48:25,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d6d88d0f7/b0fbd43292114d819704ee8a694fd2b4 [2024-09-15 19:48:25,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 19:48:25,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-15 19:48:25,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 19:48:25,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 19:48:25,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 19:48:25,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:48:25" (1/1) ... [2024-09-15 19:48:25,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc7b1f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:25, skipping insertion in model container [2024-09-15 19:48:25,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 07:48:25" (1/1) ... [2024-09-15 19:48:25,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 19:48:26,008 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2024-09-15 19:48:26,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 19:48:26,030 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 19:48:26,042 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c[439,452] [2024-09-15 19:48:26,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 19:48:26,058 INFO L204 MainTranslator]: Completed translation [2024-09-15 19:48:26,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26 WrapperNode [2024-09-15 19:48:26,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 19:48:26,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 19:48:26,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 19:48:26,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 19:48:26,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,071 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,076 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-15 19:48:26,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 19:48:26,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 19:48:26,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 19:48:26,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 19:48:26,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,086 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,098 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2024-09-15 19:48:26,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,102 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 19:48:26,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 19:48:26,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 19:48:26,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 19:48:26,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (1/1) ... [2024-09-15 19:48:26,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 19:48:26,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 19:48:26,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-15 19:48:26,143 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-15 19:48:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 19:48:26,180 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-09-15 19:48:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-09-15 19:48:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 19:48:26,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 19:48:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 19:48:26,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-15 19:48:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-15 19:48:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2024-09-15 19:48:26,182 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2024-09-15 19:48:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-15 19:48:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-15 19:48:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 19:48:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 19:48:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 19:48:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 19:48:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-15 19:48:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-15 19:48:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 19:48:26,236 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 19:48:26,237 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 19:48:26,330 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-09-15 19:48:26,330 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 19:48:26,350 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 19:48:26,351 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 19:48:26,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:48:26 BoogieIcfgContainer [2024-09-15 19:48:26,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 19:48:26,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 19:48:26,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 19:48:26,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 19:48:26,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 07:48:25" (1/3) ... [2024-09-15 19:48:26,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4261477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:48:26, skipping insertion in model container [2024-09-15 19:48:26,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 07:48:26" (2/3) ... [2024-09-15 19:48:26,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4261477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 07:48:26, skipping insertion in model container [2024-09-15 19:48:26,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:48:26" (3/3) ... [2024-09-15 19:48:26,360 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2024-09-15 19:48:26,372 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 19:48:26,372 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-15 19:48:26,421 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 19:48:26,428 INFO L336 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=All, 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;@2f658bc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 19:48:26,428 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-15 19:48:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-15 19:48:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-15 19:48:26,438 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 19:48:26,439 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 19:48:26,439 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 19:48:26,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1580235901, now seen corresponding path program 1 times [2024-09-15 19:48:26,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 19:48:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114428312] [2024-09-15 19:48:26,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 19:48:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 19:48:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:26,782 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-15 19:48:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:26,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 19:48:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114428312] [2024-09-15 19:48:26,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114428312] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 19:48:26,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 19:48:26,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-15 19:48:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872152690] [2024-09-15 19:48:26,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 19:48:26,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-15 19:48:26,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 19:48:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-15 19:48:26,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-15 19:48:26,835 INFO L87 Difference]: Start difference. First operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 19:48:26,910 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-09-15 19:48:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-15 19:48:26,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-15 19:48:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 19:48:26,919 INFO L225 Difference]: With dead ends: 36 [2024-09-15 19:48:26,919 INFO L226 Difference]: Without dead ends: 17 [2024-09-15 19:48:26,922 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-15 19:48:26,926 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 19:48:26,927 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 63 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 19:48:26,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-09-15 19:48:26,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-09-15 19:48:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 5 states have call successors, (5), 5 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-09-15 19:48:26,968 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2024-09-15 19:48:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 19:48:26,969 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-09-15 19:48:26,969 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:26,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-09-15 19:48:26,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-15 19:48:26,971 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 19:48:26,971 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 19:48:26,971 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 19:48:26,972 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 19:48:26,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:26,973 INFO L85 PathProgramCache]: Analyzing trace with hash -33473928, now seen corresponding path program 1 times [2024-09-15 19:48:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 19:48:26,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636759085] [2024-09-15 19:48:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 19:48:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 19:48:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:27,328 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-15 19:48:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:27,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 19:48:27,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636759085] [2024-09-15 19:48:27,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636759085] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 19:48:27,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787645205] [2024-09-15 19:48:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 19:48:27,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 19:48:27,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 19:48:27,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 19:48:27,337 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-15 19:48:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:27,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-09-15 19:48:27,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 19:48:27,445 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 [2024-09-15 19:48:27,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 19:48:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:27,555 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 19:48:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:27,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787645205] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 19:48:27,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 19:48:27,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 22 [2024-09-15 19:48:27,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504048467] [2024-09-15 19:48:27,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 19:48:27,706 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-09-15 19:48:27,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 19:48:27,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-09-15 19:48:27,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2024-09-15 19:48:27,708 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 9 states have call successors, (10), 9 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 19:48:27,888 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-09-15 19:48:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-15 19:48:27,888 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 9 states have call successors, (10), 9 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-15 19:48:27,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 19:48:27,889 INFO L225 Difference]: With dead ends: 31 [2024-09-15 19:48:27,890 INFO L226 Difference]: Without dead ends: 27 [2024-09-15 19:48:27,891 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2024-09-15 19:48:27,892 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 19:48:27,893 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 83 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 19:48:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-15 19:48:27,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2024-09-15 19:48:27,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 9 states have call successors, (9), 9 states have call predecessors, (9), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:27,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-09-15 19:48:27,898 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 15 [2024-09-15 19:48:27,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 19:48:27,899 INFO L474 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-09-15 19:48:27,900 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 9 states have call successors, (10), 9 states have call predecessors, (10), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:27,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:27,901 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-09-15 19:48:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-09-15 19:48:27,902 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 19:48:27,902 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 19:48:27,916 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-15 19:48:28,104 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 19:48:28,105 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 19:48:28,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:28,105 INFO L85 PathProgramCache]: Analyzing trace with hash -529350248, now seen corresponding path program 2 times [2024-09-15 19:48:28,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 19:48:28,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301565708] [2024-09-15 19:48:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 19:48:28,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 19:48:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:28,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-15 19:48:28,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:28,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 19:48:28,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301565708] [2024-09-15 19:48:28,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301565708] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 19:48:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532872913] [2024-09-15 19:48:28,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-15 19:48:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 19:48:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 19:48:28,612 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 19:48:28,618 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-15 19:48:28,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-15 19:48:28,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 19:48:28,677 WARN L260 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-09-15 19:48:28,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 19:48:28,692 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 [2024-09-15 19:48:28,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 19:48:28,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 19:48:28,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 19:48:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:28,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 19:48:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:29,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532872913] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 19:48:29,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 19:48:29,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 38 [2024-09-15 19:48:29,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111227071] [2024-09-15 19:48:29,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 19:48:29,150 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-09-15 19:48:29,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 19:48:29,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-09-15 19:48:29,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2024-09-15 19:48:29,151 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 38 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 22 states have internal predecessors, (34), 17 states have call successors, (18), 17 states have call predecessors, (18), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:29,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 19:48:29,546 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2024-09-15 19:48:29,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-09-15 19:48:29,547 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 22 states have internal predecessors, (34), 17 states have call successors, (18), 17 states have call predecessors, (18), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-09-15 19:48:29,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 19:48:29,548 INFO L225 Difference]: With dead ends: 51 [2024-09-15 19:48:29,548 INFO L226 Difference]: Without dead ends: 47 [2024-09-15 19:48:29,549 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=441, Invalid=2751, Unknown=0, NotChecked=0, Total=3192 [2024-09-15 19:48:29,550 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 35 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 19:48:29,550 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 83 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 19:48:29,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-15 19:48:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2024-09-15 19:48:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.037037037037037) internal successors, (28), 27 states have internal predecessors, (28), 17 states have call successors, (17), 17 states have call predecessors, (17), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:29,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-09-15 19:48:29,560 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 25 [2024-09-15 19:48:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 19:48:29,561 INFO L474 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-09-15 19:48:29,561 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 22 states have internal predecessors, (34), 17 states have call successors, (18), 17 states have call predecessors, (18), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:29,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-09-15 19:48:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-15 19:48:29,563 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 19:48:29,563 INFO L216 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 19:48:29,576 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-15 19:48:29,764 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 19:48:29,765 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr0ASSERT_VIOLATIONERROR_FUNCTION === [fooErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 19:48:29,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:29,766 INFO L85 PathProgramCache]: Analyzing trace with hash -586901544, now seen corresponding path program 3 times [2024-09-15 19:48:29,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 19:48:29,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751079971] [2024-09-15 19:48:29,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 19:48:29,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 19:48:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:30,793 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-15 19:48:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 19:48:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 19:48:30,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 19:48:30,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751079971] [2024-09-15 19:48:30,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751079971] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-15 19:48:30,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40388730] [2024-09-15 19:48:30,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-15 19:48:30,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 19:48:30,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 19:48:30,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-15 19:48:30,800 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-15 19:48:30,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-15 19:48:30,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-15 19:48:30,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-09-15 19:48:30,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-15 19:48:30,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-09-15 19:48:31,023 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-09-15 19:48:31,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-15 19:48:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-09-15 19:48:31,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40388730] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-15 19:48:31,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-15 19:48:31,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 42 [2024-09-15 19:48:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631689317] [2024-09-15 19:48:31,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-15 19:48:31,188 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-09-15 19:48:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 19:48:31,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-09-15 19:48:31,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1510, Unknown=0, NotChecked=0, Total=1722 [2024-09-15 19:48:31,190 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 42 states, 32 states have (on average 1.28125) internal successors, (41), 25 states have internal predecessors, (41), 18 states have call successors, (22), 18 states have call predecessors, (22), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 19:48:31,787 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2024-09-15 19:48:31,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-09-15 19:48:31,787 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 32 states have (on average 1.28125) internal successors, (41), 25 states have internal predecessors, (41), 18 states have call successors, (22), 18 states have call predecessors, (22), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2024-09-15 19:48:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 19:48:31,788 INFO L225 Difference]: With dead ends: 53 [2024-09-15 19:48:31,788 INFO L226 Difference]: Without dead ends: 0 [2024-09-15 19:48:31,790 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 80 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=682, Invalid=3874, Unknown=0, NotChecked=0, Total=4556 [2024-09-15 19:48:31,791 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 39 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-15 19:48:31,791 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 66 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-15 19:48:31,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-15 19:48:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-15 19:48:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-09-15 19:48:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-15 19:48:31,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2024-09-15 19:48:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 19:48:31,793 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-15 19:48:31,793 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 32 states have (on average 1.28125) internal successors, (41), 25 states have internal predecessors, (41), 18 states have call successors, (22), 18 states have call predecessors, (22), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 19:48:31,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 19:48:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-15 19:48:31,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-15 19:48:31,796 INFO L785 garLoopResultBuilder]: Registering result SAFE for location fooErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-15 19:48:31,808 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-15 19:48:31,996 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-15 19:48:32,000 INFO L408 BasicCegarLoop]: Path program histogram: [3, 1] [2024-09-15 19:48:32,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-15 19:48:32,645 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 19:48:32,660 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-15 19:48:32,661 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-09-15 19:48:32,661 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-09-15 19:48:32,662 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-09-15 19:48:32,662 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-09-15 19:48:32,670 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-15 19:48:32,670 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-09-15 19:48:32,670 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] [2024-09-15 19:48:32,671 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-09-15 19:48:32,671 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] [2024-09-15 19:48:32,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 07:48:32 BoogieIcfgContainer [2024-09-15 19:48:32,671 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 19:48:32,672 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-15 19:48:32,672 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-15 19:48:32,672 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-15 19:48:32,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 07:48:26" (3/4) ... [2024-09-15 19:48:32,674 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-15 19:48:32,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-15 19:48:32,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2024-09-15 19:48:32,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-15 19:48:32,677 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2024-09-15 19:48:32,680 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-15 19:48:32,680 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-15 19:48:32,680 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-15 19:48:32,680 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-15 19:48:32,740 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-15 19:48:32,741 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-15 19:48:32,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-15 19:48:32,741 INFO L158 Benchmark]: Toolchain (without parser) took 6887.95ms. Allocated memory was 75.5MB in the beginning and 163.6MB in the end (delta: 88.1MB). Free memory was 36.9MB in the beginning and 80.8MB in the end (delta: -43.9MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-09-15 19:48:32,742 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 29.2MB in the beginning and 29.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 19:48:32,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.09ms. Allocated memory is still 75.5MB. Free memory was 36.7MB in the beginning and 49.8MB in the end (delta: -13.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-09-15 19:48:32,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.19ms. Allocated memory is still 75.5MB. Free memory was 49.8MB in the beginning and 48.9MB in the end (delta: 844.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 19:48:32,743 INFO L158 Benchmark]: Boogie Preprocessor took 32.89ms. Allocated memory is still 75.5MB. Free memory was 48.9MB in the beginning and 47.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 19:48:32,743 INFO L158 Benchmark]: RCFGBuilder took 241.47ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 34.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-15 19:48:32,743 INFO L158 Benchmark]: TraceAbstraction took 6318.28ms. Allocated memory was 75.5MB in the beginning and 163.6MB in the end (delta: 88.1MB). Free memory was 34.2MB in the beginning and 85.0MB in the end (delta: -50.8MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2024-09-15 19:48:32,743 INFO L158 Benchmark]: Witness Printer took 69.19ms. Allocated memory is still 163.6MB. Free memory was 85.0MB in the beginning and 80.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-15 19:48:32,744 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 29.2MB in the beginning and 29.1MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.09ms. Allocated memory is still 75.5MB. Free memory was 36.7MB in the beginning and 49.8MB in the end (delta: -13.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.19ms. Allocated memory is still 75.5MB. Free memory was 49.8MB in the beginning and 48.9MB in the end (delta: 844.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.89ms. Allocated memory is still 75.5MB. Free memory was 48.9MB in the beginning and 47.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.47ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 34.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6318.28ms. Allocated memory was 75.5MB in the beginning and 163.6MB in the end (delta: 88.1MB). Free memory was 34.2MB in the beginning and 85.0MB in the end (delta: -50.8MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Witness Printer took 69.19ms. Allocated memory is still 163.6MB. Free memory was 85.0MB in the beginning and 80.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~p!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~p!base,]]] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 295 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 251 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 44 mSDtfsCounter, 498 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 292 GetRequests, 136 SyntacticMatches, 4 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1812 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=3, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 180 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 1105 SizeOfPredicates, 39 NumberOfNonLiveVariables, 396 ConjunctsInSsa, 162 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 236/426 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-15 19:48:32,770 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE