./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.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 e378df2c Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/loop-industry-pattern/aiob_4.c.v+lh-reducer.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 9e5c7c8f34d0399e1ec13072e237ea7df9536407415bc8e3ff2e61c34b30de96 --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 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 14:21:10,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 14:21:10,514 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-15 14:21:10,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 14:21:10,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 14:21:10,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 14:21:10,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 14:21:10,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 14:21:10,546 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 14:21:10,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 14:21:10,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 14:21:10,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 14:21:10,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 14:21:10,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 14:21:10,550 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 14:21:10,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 14:21:10,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 14:21:10,551 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 14:21:10,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 14:21:10,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 14:21:10,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 14:21:10,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 14:21:10,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 14:21:10,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 14:21:10,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 14:21:10,554 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 14:21:10,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 14:21:10,554 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 14:21:10,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 14:21:10,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 14:21:10,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 14:21:10,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 14:21:10,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:21:10,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 14:21:10,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 14:21:10,556 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 14:21:10,557 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 14:21:10,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 14:21:10,557 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 14:21:10,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 14:21:10,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 14:21:10,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 14:21:10,558 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e5c7c8f34d0399e1ec13072e237ea7df9536407415bc8e3ff2e61c34b30de96 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-10-15 14:21:10,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 14:21:10,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 14:21:10,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 14:21:10,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 14:21:10,796 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 14:21:10,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2024-10-15 14:21:12,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 14:21:12,232 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 14:21:12,232 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2024-10-15 14:21:12,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c5a22174e/10be3a4ec91d450a8b6da93fa1d3fcf9/FLAG485146059 [2024-10-15 14:21:12,249 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c5a22174e/10be3a4ec91d450a8b6da93fa1d3fcf9 [2024-10-15 14:21:12,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 14:21:12,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 14:21:12,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 14:21:12,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 14:21:12,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 14:21:12,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5366ae06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12, skipping insertion in model container [2024-10-15 14:21:12,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 14:21:12,500 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/loop-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2024-10-15 14:21:12,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:21:12,514 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 14:21:12,560 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/loop-industry-pattern/aiob_4.c.v+lh-reducer.c[8507,8520] [2024-10-15 14:21:12,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 14:21:12,578 INFO L204 MainTranslator]: Completed translation [2024-10-15 14:21:12,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12 WrapperNode [2024-10-15 14:21:12,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 14:21:12,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 14:21:12,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 14:21:12,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 14:21:12,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,612 INFO L138 Inliner]: procedures = 17, calls = 202, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 14:21:12,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 14:21:12,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 14:21:12,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 14:21:12,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 14:21:12,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,704 INFO L175 MemorySlicer]: Split 179 memory accesses to 5 slices as follows [2, 7, 2, 41, 127]. 71 percent of accesses are in the largest equivalence class. The 137 initializations are split as follows [2, 7, 2, 0, 126]. The 0 writes are split as follows [0, 0, 0, 0, 0]. [2024-10-15 14:21:12,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 14:21:12,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 14:21:12,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 14:21:12,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 14:21:12,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (1/1) ... [2024-10-15 14:21:12,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 14:21:12,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:21:12,781 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) [2024-10-15 14:21:12,788 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 [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 14:21:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 14:21:12,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-15 14:21:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 14:21:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 14:21:12,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-15 14:21:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-15 14:21:12,956 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 14:21:12,958 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 14:21:13,362 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-10-15 14:21:13,362 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 14:21:13,376 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 14:21:13,377 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 14:21:13,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:13 BoogieIcfgContainer [2024-10-15 14:21:13,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 14:21:13,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 14:21:13,381 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 14:21:13,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 14:21:13,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:21:12" (1/3) ... [2024-10-15 14:21:13,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc72583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:21:13, skipping insertion in model container [2024-10-15 14:21:13,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:21:12" (2/3) ... [2024-10-15 14:21:13,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc72583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:21:13, skipping insertion in model container [2024-10-15 14:21:13,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:13" (3/3) ... [2024-10-15 14:21:13,385 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2024-10-15 14:21:13,397 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 14:21:13,397 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-15 14:21:13,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 14:21:13,444 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5e174a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 14:21:13,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-15 14:21:13,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-15 14:21:13,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-15 14:21:13,451 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:21:13,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:21:13,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:21:13,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:13,456 INFO L85 PathProgramCache]: Analyzing trace with hash 64063018, now seen corresponding path program 1 times [2024-10-15 14:21:13,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:21:13,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092201569] [2024-10-15 14:21:13,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:21:13,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:21:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:14,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:21:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:14,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:21:14,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092201569] [2024-10-15 14:21:14,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092201569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 14:21:14,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 14:21:14,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-15 14:21:14,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529635392] [2024-10-15 14:21:14,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 14:21:14,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-15 14:21:14,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:21:14,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-15 14:21:14,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-15 14:21:14,160 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:14,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:21:14,274 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2024-10-15 14:21:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 14:21:14,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-15 14:21:14,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:21:14,281 INFO L225 Difference]: With dead ends: 37 [2024-10-15 14:21:14,281 INFO L226 Difference]: Without dead ends: 20 [2024-10-15 14:21:14,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-15 14:21:14,289 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 29 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 14:21:14,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 33 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 14:21:14,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-15 14:21:14,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2024-10-15 14:21:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:14,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-10-15 14:21:14,314 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2024-10-15 14:21:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:21:14,316 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-10-15 14:21:14,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:14,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-10-15 14:21:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-15 14:21:14,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:21:14,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:21:14,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 14:21:14,318 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:21:14,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1319044142, now seen corresponding path program 1 times [2024-10-15 14:21:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:21:14,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966313932] [2024-10-15 14:21:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:21:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:21:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:14,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:21:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:14,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:21:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966313932] [2024-10-15 14:21:14,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966313932] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:21:14,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580071238] [2024-10-15 14:21:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:21:14,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:21:14,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:21:14,640 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) [2024-10-15 14:21:14,642 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-15 14:21:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:14,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-15 14:21:14,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:21:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:14,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:21:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:15,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580071238] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:21:15,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:21:15,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-10-15 14:21:15,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815438519] [2024-10-15 14:21:15,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:21:15,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-15 14:21:15,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:21:15,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-15 14:21:15,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-15 14:21:15,046 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:21:15,244 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2024-10-15 14:21:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-15 14:21:15,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-10-15 14:21:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:21:15,245 INFO L225 Difference]: With dead ends: 37 [2024-10-15 14:21:15,245 INFO L226 Difference]: Without dead ends: 34 [2024-10-15 14:21:15,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-15 14:21:15,246 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 14:21:15,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 37 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 14:21:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-15 14:21:15,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-10-15 14:21:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2024-10-15 14:21:15,260 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 16 [2024-10-15 14:21:15,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:21:15,260 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2024-10-15 14:21:15,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:15,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:15,261 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2024-10-15 14:21:15,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-15 14:21:15,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:21:15,261 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:21:15,291 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-15 14:21:15,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:21:15,462 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:21:15,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1037510614, now seen corresponding path program 2 times [2024-10-15 14:21:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:21:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95479950] [2024-10-15 14:21:15,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:21:15,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:21:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:15,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:21:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:21:15,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95479950] [2024-10-15 14:21:15,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95479950] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:21:15,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701227851] [2024-10-15 14:21:15,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-15 14:21:15,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:21:15,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:21:15,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 14:21:15,874 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-15 14:21:16,234 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-15 14:21:16,234 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:21:16,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-15 14:21:16,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:21:16,300 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:16,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:21:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:16,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701227851] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:21:16,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:21:16,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 16 [2024-10-15 14:21:16,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685492621] [2024-10-15 14:21:16,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:21:16,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-15 14:21:16,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:21:16,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-15 14:21:16,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-15 14:21:16,457 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:21:16,816 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2024-10-15 14:21:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-15 14:21:16,816 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-10-15 14:21:16,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:21:16,817 INFO L225 Difference]: With dead ends: 67 [2024-10-15 14:21:16,817 INFO L226 Difference]: Without dead ends: 64 [2024-10-15 14:21:16,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=642, Unknown=0, NotChecked=0, Total=870 [2024-10-15 14:21:16,818 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 76 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-15 14:21:16,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 79 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-15 14:21:16,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-15 14:21:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-10-15 14:21:16,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.0172413793103448) internal successors, (59), 58 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2024-10-15 14:21:16,832 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 31 [2024-10-15 14:21:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:21:16,833 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2024-10-15 14:21:16,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:16,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:16,833 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2024-10-15 14:21:16,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-15 14:21:16,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-15 14:21:16,834 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 14:21:16,851 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-15 14:21:17,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:21:17,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-15 14:21:17,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash 99971882, now seen corresponding path program 3 times [2024-10-15 14:21:17,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 14:21:17,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424866816] [2024-10-15 14:21:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 14:21:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 14:21:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:17,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-15 14:21:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 14:21:17,605 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 14:21:17,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 14:21:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424866816] [2024-10-15 14:21:17,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424866816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-15 14:21:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911304170] [2024-10-15 14:21:17,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-15 14:21:17,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:21:17,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-10-15 14:21:17,607 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-15 14:21:17,608 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-15 14:21:17,917 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-15 14:21:17,918 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-15 14:21:17,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-15 14:21:17,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-15 14:21:18,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-15 14:21:18,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2024-10-15 14:21:18,388 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 27 proven. 39 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-10-15 14:21:18,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-15 14:21:19,740 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-10-15 14:21:19,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911304170] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-15 14:21:19,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-15 14:21:19,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 27 [2024-10-15 14:21:19,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601999519] [2024-10-15 14:21:19,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-15 14:21:19,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-15 14:21:19,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 14:21:19,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-15 14:21:19,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2024-10-15 14:21:19,742 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:20,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-15 14:21:20,759 INFO L93 Difference]: Finished difference Result 73 states and 75 transitions. [2024-10-15 14:21:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-15 14:21:20,760 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2024-10-15 14:21:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-15 14:21:20,760 INFO L225 Difference]: With dead ends: 73 [2024-10-15 14:21:20,760 INFO L226 Difference]: Without dead ends: 0 [2024-10-15 14:21:20,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=584, Invalid=2278, Unknown=0, NotChecked=0, Total=2862 [2024-10-15 14:21:20,762 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 137 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-15 14:21:20,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 137 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-15 14:21:20,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-15 14:21:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-15 14:21:20,763 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) [2024-10-15 14:21:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-15 14:21:20,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2024-10-15 14:21:20,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-15 14:21:20,763 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-15 14:21:20,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.2222222222222223) internal successors, (87), 26 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-15 14:21:20,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 14:21:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-15 14:21:20,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-15 14:21:20,766 INFO L782 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-15 14:21:20,780 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-15 14:21:20,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-15 14:21:20,969 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-10-15 14:21:20,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-15 14:21:21,481 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 14:21:21,487 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-10-15 14:21:21,488 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-10-15 14:21:21,488 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_89__Id_MCDC_95~0!base,]]] [2024-10-15 14:21:21,489 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_89__Id_MCDC_95~0!offset [2024-10-15 14:21:21,490 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-10-15 14:21:21,490 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-10-15 14:21:21,490 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_89__Id_MCDC_95~0!base,]]] [2024-10-15 14:21:21,490 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_89__Id_MCDC_95~0!offset [2024-10-15 14:21:21,490 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#4 [2024-10-15 14:21:21,491 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] [2024-10-15 14:21:21,491 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_89__Id_MCDC_95~0!base,]]] [2024-10-15 14:21:21,491 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_89__Id_MCDC_95~0!offset [2024-10-15 14:21:21,494 WARN L156 FloydHoareUtils]: Requires clause for main contained old-variable. Original clause: (and (= ~Id_MCDC_93~0 0) (= |old(~Id_MCDC_93~0)| 0)) Eliminated clause: (= ~Id_MCDC_93~0 0) [2024-10-15 14:21:21,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:21:21 BoogieIcfgContainer [2024-10-15 14:21:21,499 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 14:21:21,500 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 14:21:21,500 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 14:21:21,500 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 14:21:21,500 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:21:13" (3/4) ... [2024-10-15 14:21:21,501 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 14:21:21,539 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-10-15 14:21:21,540 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 14:21:21,540 INFO L158 Benchmark]: Toolchain (without parser) took 9286.42ms. Allocated memory was 148.9MB in the beginning and 373.3MB in the end (delta: 224.4MB). Free memory was 77.5MB in the beginning and 159.0MB in the end (delta: -81.5MB). Peak memory consumption was 144.8MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,540 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 14:21:21,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.16ms. Allocated memory is still 148.9MB. Free memory was 77.3MB in the beginning and 58.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.43ms. Allocated memory is still 148.9MB. Free memory was 58.6MB in the beginning and 119.5MB in the end (delta: -60.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,541 INFO L158 Benchmark]: Boogie Preprocessor took 124.60ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 119.5MB in the beginning and 179.5MB in the end (delta: -60.0MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,543 INFO L158 Benchmark]: RCFGBuilder took 624.70ms. Allocated memory is still 209.7MB. Free memory was 179.5MB in the beginning and 122.8MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,543 INFO L158 Benchmark]: TraceAbstraction took 8119.41ms. Allocated memory was 209.7MB in the beginning and 373.3MB in the end (delta: 163.6MB). Free memory was 121.8MB in the beginning and 161.1MB in the end (delta: -39.3MB). Peak memory consumption was 125.3MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,543 INFO L158 Benchmark]: Witness Printer took 39.96ms. Allocated memory is still 373.3MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 14:21:21,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.16ms. Allocated memory is still 148.9MB. Free memory was 77.3MB in the beginning and 58.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.43ms. Allocated memory is still 148.9MB. Free memory was 58.6MB in the beginning and 119.5MB in the end (delta: -60.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.60ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 119.5MB in the beginning and 179.5MB in the end (delta: -60.0MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.70ms. Allocated memory is still 209.7MB. Free memory was 179.5MB in the beginning and 122.8MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8119.41ms. Allocated memory was 209.7MB in the beginning and 373.3MB in the end (delta: 163.6MB). Free memory was 121.8MB in the beginning and 161.1MB in the end (delta: -39.3MB). Peak memory consumption was 125.3MB. Max. memory is 16.1GB. * Witness Printer took 39.96ms. Allocated memory is still 373.3MB. Free memory was 161.1MB in the beginning and 159.0MB 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: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_89__Id_MCDC_95~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_89__Id_MCDC_95~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_89__Id_MCDC_95~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_89__Id_MCDC_95~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#4 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#4,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#4,GLOBAL],[IdentifierExpression[~#Id_MCDC_89__Id_MCDC_95~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#Id_MCDC_89__Id_MCDC_95~0!offset * 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: 221]: 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 4, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 286 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 286 mSDsluCounter, 286 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 904 IncrementalHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 41 mSDtfsCounter, 904 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 304 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=3, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 227 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 325 ConstructedInterpolants, 46 QuantifiedInterpolants, 3190 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1798 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 405/900 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 - InvariantResult [Line: 167]: Location Invariant Derived location invariant: (((((Id_MCDC_93 == 0) && (Id_MCDC_89__Id_MCDC_96 == 0)) || ((((41 != ((4294967295 + Id_MCDC_89__Id_MCDC_96) % 4294967296)) && (((4294967295 + Id_MCDC_89__Id_MCDC_96) % 4294967296) <= 41)) && (((Id_MCDC_93 + 4294967295) % 4294967296) <= 41)) && (Id_MCDC_93 <= 41))) || (((Id_MCDC_89__Id_MCDC_96 == 1) && (Id_MCDC_93 <= 1)) && (0 <= 0))) && (\old(Id_MCDC_93) == 0)) - ProcedureContractResult [Line: 133]: Procedure Contract for main Derived contract for procedure main. Requires: (Id_MCDC_93 == 0) Ensures: ((\old(Id_MCDC_93) == 0) && (__return_main == \old(__return_main))) RESULT: Ultimate proved your program to be correct! [2024-10-15 14:21:21,567 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE