./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.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 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 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/recursified_loop-crafted/recursified_simple_vardep_1.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 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:31:27,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:31:27,640 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-21 12:31:27,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:31:27,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:31:27,671 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:31:27,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:31:27,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:31:27,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:31:27,674 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:31:27,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:31:27,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:31:27,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:31:27,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:31:27,677 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:31:27,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:31:27,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:31:27,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:31:27,679 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:31:27,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:31:27,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:31:27,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:31:27,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:31:27,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:31:27,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:31:27,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:31:27,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:31:27,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:31:27,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:31:27,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:31:27,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:31:27,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:31:27,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:31:27,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:31:27,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:31:27,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:31:27,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:31:27,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:31:27,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:31:27,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:31:27,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:31:27,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:31:27,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-21 12:31:27,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:31:27,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:31:27,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:31:27,895 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:31:27,895 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:31:27,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2024-09-21 12:31:29,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:31:29,342 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:31:29,343 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2024-09-21 12:31:29,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/e72bacffb/aa6ecd09ee074996a5596f1d95630359/FLAGd33591df8 [2024-09-21 12:31:29,358 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/e72bacffb/aa6ecd09ee074996a5596f1d95630359 [2024-09-21 12:31:29,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:31:29,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-21 12:31:29,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:31:29,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:31:29,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:31:29,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf61284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29, skipping insertion in model container [2024-09-21 12:31:29,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:31:29,499 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/recursified_loop-crafted/recursified_simple_vardep_1.c[1113,1126] [2024-09-21 12:31:29,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:31:29,524 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:31:29,536 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/recursified_loop-crafted/recursified_simple_vardep_1.c[1113,1126] [2024-09-21 12:31:29,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:31:29,556 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:31:29,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29 WrapperNode [2024-09-21 12:31:29,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:31:29,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-21 12:31:29,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-21 12:31:29,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-21 12:31:29,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,583 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,587 INFO L138 Inliner]: procedures = 14, calls = 29, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-21 12:31:29,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-21 12:31:29,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:31:29,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:31:29,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:31:29,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,605 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 4, 4, 5]. 33 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [2, 1, 1, 1]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-09-21 12:31:29,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,608 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:31:29,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:31:29,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:31:29,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:31:29,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (1/1) ... [2024-09-21 12:31:29,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:31:29,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:31:29,647 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) [2024-09-21 12:31:29,649 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 [2024-09-21 12:31:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:31:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:31:29,683 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:31:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:31:29,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-21 12:31:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-21 12:31:29,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-09-21 12:31:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-21 12:31:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:31:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-21 12:31:29,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-21 12:31:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-09-21 12:31:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:31:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:31:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:31:29,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:31:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:31:29,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-21 12:31:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-21 12:31:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-09-21 12:31:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:31:29,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 12:31:29,687 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_20_to_25_0 [2024-09-21 12:31:29,688 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_20_to_25_0 [2024-09-21 12:31:29,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:31:29,752 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:31:29,754 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:31:29,860 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-09-21 12:31:29,860 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:31:29,878 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:31:29,878 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:31:29,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:31:29 BoogieIcfgContainer [2024-09-21 12:31:29,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:31:29,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-21 12:31:29,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-21 12:31:29,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-21 12:31:29,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:31:29" (1/3) ... [2024-09-21 12:31:29,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d39bf42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:31:29, skipping insertion in model container [2024-09-21 12:31:29,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:31:29" (2/3) ... [2024-09-21 12:31:29,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d39bf42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:31:29, skipping insertion in model container [2024-09-21 12:31:29,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:31:29" (3/3) ... [2024-09-21 12:31:29,888 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_simple_vardep_1.c [2024-09-21 12:31:29,905 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-21 12:31:29,906 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-21 12:31:29,947 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-21 12:31:29,953 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;@25d7bef5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-21 12:31:29,953 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-21 12:31:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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) [2024-09-21 12:31:29,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-21 12:31:29,961 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:31:29,961 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:31:29,962 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:31:29,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:31:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1671296621, now seen corresponding path program 1 times [2024-09-21 12:31:29,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:31:29,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138646695] [2024-09-21 12:31:29,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:31:29,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:31:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:31:30,926 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:31:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:31:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-21 12:31:30,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:31:30,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138646695] [2024-09-21 12:31:30,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138646695] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-21 12:31:30,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-21 12:31:30,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-09-21 12:31:30,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126534948] [2024-09-21 12:31:30,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-21 12:31:30,941 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-21 12:31:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:31:30,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-21 12:31:30,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-09-21 12:31:30,961 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-21 12:31:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:31:31,091 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2024-09-21 12:31:31,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-21 12:31:31,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-21 12:31:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:31:31,098 INFO L225 Difference]: With dead ends: 48 [2024-09-21 12:31:31,098 INFO L226 Difference]: Without dead ends: 25 [2024-09-21 12:31:31,101 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-09-21 12:31:31,105 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-21 12:31:31,106 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 109 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-21 12:31:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-21 12:31:31,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-09-21 12:31:31,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 6 states have call successors, (6), 6 states have call predecessors, (6), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-21 12:31:31,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-09-21 12:31:31,137 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2024-09-21 12:31:31,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:31:31,137 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-09-21 12:31:31,137 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-21 12:31:31,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:31:31,138 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-09-21 12:31:31,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-21 12:31:31,139 INFO L208 NwaCegarLoop]: Found error trace [2024-09-21 12:31:31,139 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-21 12:31:31,139 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-21 12:31:31,139 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-21 12:31:31,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:31:31,140 INFO L85 PathProgramCache]: Analyzing trace with hash 345612298, now seen corresponding path program 1 times [2024-09-21 12:31:31,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-21 12:31:31,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652836329] [2024-09-21 12:31:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:31:31,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-21 12:31:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:31:32,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-21 12:31:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:31:32,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-09-21 12:31:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:31:32,116 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-21 12:31:32,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-21 12:31:32,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652836329] [2024-09-21 12:31:32,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652836329] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-21 12:31:32,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017282168] [2024-09-21 12:31:32,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-21 12:31:32,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-21 12:31:32,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-21 12:31:32,122 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) [2024-09-21 12:31:32,125 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-21 12:31:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-21 12:31:32,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-09-21 12:31:32,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-21 12:31:32,389 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 [2024-09-21 12:31:32,395 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 17 treesize of output 9 [2024-09-21 12:31:32,403 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 [2024-09-21 12:31:32,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 31 treesize of output 23 [2024-09-21 12:31:32,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 20 [2024-09-21 12:31:32,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 24 treesize of output 16 [2024-09-21 12:31:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-21 12:31:32,886 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-21 12:31:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-21 12:31:33,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017282168] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-21 12:31:33,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-21 12:31:33,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 21 [2024-09-21 12:31:33,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097722338] [2024-09-21 12:31:33,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-21 12:31:33,129 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-21 12:31:33,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-21 12:31:33,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-21 12:31:33,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-09-21 12:31:33,131 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 21 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 8 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-21 12:31:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-21 12:31:33,285 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-09-21 12:31:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-21 12:31:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 8 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 21 [2024-09-21 12:31:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-21 12:31:33,287 INFO L225 Difference]: With dead ends: 24 [2024-09-21 12:31:33,287 INFO L226 Difference]: Without dead ends: 0 [2024-09-21 12:31:33,288 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600 [2024-09-21 12:31:33,288 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-21 12:31:33,289 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 71 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-21 12:31:33,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-21 12:31:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-21 12:31:33,289 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) [2024-09-21 12:31:33,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-21 12:31:33,289 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-09-21 12:31:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-21 12:31:33,289 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-21 12:31:33,290 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 8 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-21 12:31:33,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-21 12:31:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-21 12:31:33,290 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-21 12:31:33,293 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-21 12:31:33,325 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-21 12:31:33,494 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 [2024-09-21 12:31:33,497 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-21 12:31:33,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-21 12:31:33,755 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-21 12:31:33,772 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-21 12:31:33,773 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-09-21 12:31:33,774 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~i!base,]]] [2024-09-21 12:31:33,774 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-21 12:31:33,774 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[#in~j!base,]]] [2024-09-21 12:31:33,774 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] [2024-09-21 12:31:33,774 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~k!base,]]] [2024-09-21 12:31:33,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]] [2024-09-21 12:31:33,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]],[IdentifierExpression[#in~j!base,]]] [2024-09-21 12:31:33,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-09-21 12:31:33,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~i!base,]]] [2024-09-21 12:31:33,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]] [2024-09-21 12:31:33,775 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~k!base,]]] [2024-09-21 12:31:33,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:31:33 BoogieIcfgContainer [2024-09-21 12:31:33,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-21 12:31:33,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-21 12:31:33,776 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-21 12:31:33,776 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-21 12:31:33,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:31:29" (3/4) ... [2024-09-21 12:31:33,778 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-21 12:31:33,829 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-21 12:31:33,829 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-21 12:31:33,830 INFO L158 Benchmark]: Toolchain (without parser) took 4468.56ms. Allocated memory was 190.8MB in the beginning and 268.4MB in the end (delta: 77.6MB). Free memory was 121.8MB in the beginning and 104.9MB in the end (delta: 16.9MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,830 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 190.8MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:31:33,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.55ms. Allocated memory is still 190.8MB. Free memory was 121.6MB in the beginning and 109.4MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.58ms. Allocated memory is still 190.8MB. Free memory was 109.4MB in the beginning and 162.9MB in the end (delta: -53.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,831 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 190.8MB. Free memory was 162.9MB in the beginning and 160.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,831 INFO L158 Benchmark]: RCFGBuilder took 266.79ms. Allocated memory is still 190.8MB. Free memory was 160.2MB in the beginning and 146.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,832 INFO L158 Benchmark]: TraceAbstraction took 3895.33ms. Allocated memory was 190.8MB in the beginning and 268.4MB in the end (delta: 77.6MB). Free memory was 145.6MB in the beginning and 107.0MB in the end (delta: 38.6MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,832 INFO L158 Benchmark]: Witness Printer took 53.35ms. Allocated memory is still 268.4MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:31:33,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 190.8MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.55ms. Allocated memory is still 190.8MB. Free memory was 121.6MB in the beginning and 109.4MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.58ms. Allocated memory is still 190.8MB. Free memory was 109.4MB in the beginning and 162.9MB in the end (delta: -53.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 190.8MB. Free memory was 162.9MB in the beginning and 160.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.79ms. Allocated memory is still 190.8MB. Free memory was 160.2MB in the beginning and 146.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3895.33ms. Allocated memory was 190.8MB in the beginning and 268.4MB in the end (delta: 77.6MB). Free memory was 145.6MB in the beginning and 107.0MB in the end (delta: 38.6MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. * Witness Printer took 53.35ms. Allocated memory is still 268.4MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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~i!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[#in~j!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~k!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]],[IdentifierExpression[#in~j!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~i!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~k!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: 26]: 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 180 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 154 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 26 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, InterpolantAutomatonStates: 19, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 71 ConstructedInterpolants, 3 QuantifiedInterpolants, 658 SizeOfPredicates, 22 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 8/15 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 - ProcedureContractResult [Line: 20]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond) RESULT: Ultimate proved your program to be correct! [2024-09-21 12:31:33,854 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE