./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 de325976 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-de32597-m [2024-09-17 19:23:08,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:23:08,888 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-17 19:23:08,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:23:08,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:23:08,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:23:08,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:23:08,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:23:08,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:23:08,926 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:23:08,926 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:23:08,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:23:08,927 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:23:08,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:23:08,929 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:23:08,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:23:08,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:23:08,930 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:23:08,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-17 19:23:08,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:23:08,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:23:08,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:23:08,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:23:08,935 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:23:08,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:23:08,936 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:23:08,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:23:08,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:23:08,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:23:08,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:23:08,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:23:08,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:23:08,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:23:08,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:23:08,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:23:08,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:23:08,939 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-17 19:23:08,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-17 19:23:08,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:23:08,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:23:08,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:23:08,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:23:08,941 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d10641017a78060218b50f4d70d792898ed2d8ba6a3470f582f96f045a08878 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-17 19:23:09,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:23:09,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:23:09,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:23:09,206 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:23:09,207 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:23:09,208 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2024-09-17 19:23:10,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:23:10,788 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:23:10,788 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-crafted/recursified_simple_vardep_1.c [2024-09-17 19:23:10,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a91319e4a/3e3ecde7338c4223ba7477b13b515b17/FLAGdb8ad0bfd [2024-09-17 19:23:10,806 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a91319e4a/3e3ecde7338c4223ba7477b13b515b17 [2024-09-17 19:23:10,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:23:10,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-17 19:23:10,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:23:10,811 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:23:10,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:23:10,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:23:10" (1/1) ... [2024-09-17 19:23:10,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf52081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:10, skipping insertion in model container [2024-09-17 19:23:10,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:23:10" (1/1) ... [2024-09-17 19:23:10,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:23:10,980 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] [2024-09-17 19:23:10,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:23:11,004 INFO L200 MainTranslator]: Completed pre-run [2024-09-17 19:23:11,016 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] [2024-09-17 19:23:11,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:23:11,040 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:23:11,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11 WrapperNode [2024-09-17 19:23:11,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:23:11,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-17 19:23:11,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-17 19:23:11,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-17 19:23:11,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,070 INFO L138 Inliner]: procedures = 14, calls = 29, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-17 19:23:11,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-17 19:23:11,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:23:11,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:23:11,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:23:11,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,135 INFO L175 MemorySlicer]: Split 15 memory accesses to 4 slices as follows [2, 4, 5, 4]. 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]. [2024-09-17 19:23:11,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:23:11,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:23:11,160 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:23:11,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:23:11,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (1/1) ... [2024-09-17 19:23:11,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:23:11,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:23:11,220 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) [2024-09-17 19:23:11,222 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 [2024-09-17 19:23:11,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:23:11,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-17 19:23:11,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-09-17 19:23:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:23:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:23:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:23:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:23:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-17 19:23:11,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-17 19:23:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-17 19:23:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-09-17 19:23:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:23:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-17 19:23:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_20_to_25_0 [2024-09-17 19:23:11,261 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_20_to_25_0 [2024-09-17 19:23:11,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-17 19:23:11,340 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:23:11,342 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:23:11,476 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-09-17 19:23:11,477 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:23:11,496 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:23:11,497 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-17 19:23:11,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:23:11 BoogieIcfgContainer [2024-09-17 19:23:11,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:23:11,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-17 19:23:11,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-17 19:23:11,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-17 19:23:11,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 07:23:10" (1/3) ... [2024-09-17 19:23:11,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee373e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 07:23:11, skipping insertion in model container [2024-09-17 19:23:11,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:23:11" (2/3) ... [2024-09-17 19:23:11,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee373e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 07:23:11, skipping insertion in model container [2024-09-17 19:23:11,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:23:11" (3/3) ... [2024-09-17 19:23:11,505 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_simple_vardep_1.c [2024-09-17 19:23:11,518 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-17 19:23:11,518 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-17 19:23:11,562 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-17 19:23:11,568 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;@14c9ed42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-17 19:23:11,569 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-17 19:23:11,572 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) [2024-09-17 19:23:11,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-17 19:23:11,578 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:23:11,578 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:23:11,579 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:23:11,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:23:11,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1671296621, now seen corresponding path program 1 times [2024-09-17 19:23:11,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:23:11,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109495729] [2024-09-17 19:23:11,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:23:11,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:23:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:23:12,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:23:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:23:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-17 19:23:12,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:23:12,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109495729] [2024-09-17 19:23:12,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109495729] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-17 19:23:12,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-17 19:23:12,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-09-17 19:23:12,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148830764] [2024-09-17 19:23:12,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-17 19:23:12,744 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-17 19:23:12,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:23:12,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-17 19:23:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-09-17 19:23:12,770 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) [2024-09-17 19:23:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:23:12,932 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2024-09-17 19:23:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-17 19:23:12,934 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 [2024-09-17 19:23:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:23:12,941 INFO L225 Difference]: With dead ends: 51 [2024-09-17 19:23:12,941 INFO L226 Difference]: Without dead ends: 25 [2024-09-17 19:23:12,945 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 [2024-09-17 19:23:12,950 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-17 19:23:12,952 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 104 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-17 19:23:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-17 19:23:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-09-17 19:23:12,980 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) [2024-09-17 19:23:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-09-17 19:23:12,982 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2024-09-17 19:23:12,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:23:12,983 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-09-17 19:23:12,983 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) [2024-09-17 19:23:12,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:23:12,984 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-09-17 19:23:12,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-17 19:23:12,985 INFO L208 NwaCegarLoop]: Found error trace [2024-09-17 19:23:13,001 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-17 19:23:13,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-17 19:23:13,002 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-17 19:23:13,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:23:13,003 INFO L85 PathProgramCache]: Analyzing trace with hash 345612298, now seen corresponding path program 1 times [2024-09-17 19:23:13,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-17 19:23:13,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250407140] [2024-09-17 19:23:13,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:23:13,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-17 19:23:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:23:14,030 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-17 19:23:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:23:14,034 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-09-17 19:23:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:23:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-17 19:23:14,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-17 19:23:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250407140] [2024-09-17 19:23:14,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250407140] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-17 19:23:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170970802] [2024-09-17 19:23:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-17 19:23:14,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-17 19:23:14,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-17 19:23:14,048 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) [2024-09-17 19:23:14,049 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-17 19:23:14,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-17 19:23:14,440 WARN L260 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 103 conjuncts are in the unsatisfiable core [2024-09-17 19:23:14,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-17 19:23:14,692 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 19 treesize of output 11 [2024-09-17 19:23:14,704 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 19 treesize of output 11 [2024-09-17 19:23:14,712 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 19 treesize of output 11 [2024-09-17 19:23:15,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-17 19:23:15,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-17 19:23:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-17 19:23:15,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170970802] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-17 19:23:15,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-17 19:23:15,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 8] total 23 [2024-09-17 19:23:15,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331234026] [2024-09-17 19:23:15,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-17 19:23:15,386 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-17 19:23:15,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-17 19:23:15,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-17 19:23:15,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-09-17 19:23:15,389 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 23 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 16 states have internal predecessors, (29), 10 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-17 19:23:15,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-17 19:23:15,791 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-09-17 19:23:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-09-17 19:23:15,792 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 16 states have internal predecessors, (29), 10 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 21 [2024-09-17 19:23:15,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-17 19:23:15,793 INFO L225 Difference]: With dead ends: 30 [2024-09-17 19:23:15,793 INFO L226 Difference]: Without dead ends: 0 [2024-09-17 19:23:15,794 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=853, Unknown=0, NotChecked=0, Total=992 [2024-09-17 19:23:15,796 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-17 19:23:15,798 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 101 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-17 19:23:15,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-17 19:23:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-17 19:23:15,800 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) [2024-09-17 19:23:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-17 19:23:15,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-09-17 19:23:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-17 19:23:15,801 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-17 19:23:15,801 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 16 states have internal predecessors, (29), 10 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-17 19:23:15,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-17 19:23:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-17 19:23:15,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-17 19:23:15,805 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-17 19:23:15,821 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-17 19:23:16,006 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 [2024-09-17 19:23:16,009 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-17 19:23:16,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-17 19:23:16,872 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-17 19:23:16,921 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-17 19:23:16,924 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[#in~k!base,]]] [2024-09-17 19:23:16,924 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#3,GLOBAL] [2024-09-17 19:23:16,925 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#3,GLOBAL],[IdentifierExpression[#in~i!base,]]] [2024-09-17 19:23:16,925 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2024-09-17 19:23:16,925 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[#in~j!base,]]] [2024-09-17 19:23:16,925 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-09-17 19:23:16,926 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]] [2024-09-17 19:23:16,927 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#2,GLOBAL]],[IdentifierExpression[#in~k!base,]]] [2024-09-17 19:23:16,927 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]] [2024-09-17 19:23:16,927 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#1,GLOBAL]],[IdentifierExpression[#in~j!base,]]] [2024-09-17 19:23:16,927 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]] [2024-09-17 19:23:16,928 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[UnaryExpression[OLD,IdentifierExpression[#memory_int#3,GLOBAL]],[IdentifierExpression[#in~i!base,]]] [2024-09-17 19:23:16,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 07:23:16 BoogieIcfgContainer [2024-09-17 19:23:16,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-17 19:23:16,929 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-17 19:23:16,929 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-17 19:23:16,929 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-17 19:23:16,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:23:11" (3/4) ... [2024-09-17 19:23:16,932 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-17 19:23:16,985 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-17 19:23:16,986 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-17 19:23:16,986 INFO L158 Benchmark]: Toolchain (without parser) took 6177.06ms. Allocated memory was 167.8MB in the beginning and 274.7MB in the end (delta: 107.0MB). Free memory was 97.3MB in the beginning and 238.9MB in the end (delta: -141.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:23:16,987 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:23:16,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.92ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 85.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-17 19:23:16,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.73ms. Allocated memory is still 167.8MB. Free memory was 85.9MB in the beginning and 84.9MB in the end (delta: 944.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:23:16,988 INFO L158 Benchmark]: Boogie Preprocessor took 87.52ms. Allocated memory is still 167.8MB. Free memory was 84.7MB in the beginning and 139.5MB in the end (delta: -54.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-09-17 19:23:16,989 INFO L158 Benchmark]: RCFGBuilder took 337.78ms. Allocated memory is still 167.8MB. Free memory was 138.8MB in the beginning and 125.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:23:16,989 INFO L158 Benchmark]: TraceAbstraction took 5429.11ms. Allocated memory was 167.8MB in the beginning and 274.7MB in the end (delta: 107.0MB). Free memory was 124.4MB in the beginning and 241.0MB in the end (delta: -116.6MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. [2024-09-17 19:23:16,990 INFO L158 Benchmark]: Witness Printer took 56.96ms. Allocated memory is still 274.7MB. Free memory was 241.0MB in the beginning and 238.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:23:16,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 167.8MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.92ms. Allocated memory is still 167.8MB. Free memory was 97.1MB in the beginning and 85.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.73ms. Allocated memory is still 167.8MB. Free memory was 85.9MB in the beginning and 84.9MB in the end (delta: 944.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.52ms. Allocated memory is still 167.8MB. Free memory was 84.7MB in the beginning and 139.5MB in the end (delta: -54.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * RCFGBuilder took 337.78ms. Allocated memory is still 167.8MB. Free memory was 138.8MB in the beginning and 125.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5429.11ms. Allocated memory was 167.8MB in the beginning and 274.7MB in the end (delta: 107.0MB). Free memory was 124.4MB in the beginning and 241.0MB in the end (delta: -116.6MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. * Witness Printer took 56.96ms. Allocated memory is still 274.7MB. Free memory was 241.0MB in the beginning and 238.9MB 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: 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~k!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~i!base,]]] - 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~j!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 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~k!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~j!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~i!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: 4.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 178 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 27 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=1, InterpolantAutomatonStates: 26, 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, 0.5s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 71 ConstructedInterpolants, 4 QuantifiedInterpolants, 862 SizeOfPredicates, 28 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 103 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/15 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 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-17 19:23:17,026 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