./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 04d6fb36 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 20:11:18,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:11:18,859 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 20:11:18,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:11:18,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:11:18,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:11:18,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:11:18,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:11:18,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:11:18,905 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:11:18,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:11:18,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:11:18,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:11:18,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:11:18,907 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:11:18,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:11:18,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:11:18,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:11:18,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:11:18,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:11:18,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:11:18,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:11:18,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:11:18,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:11:18,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:11:18,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:11:18,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:11:18,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:11:18,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:11:18,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:11:18,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:11:18,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:11:18,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:11:18,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:11:18,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:11:18,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:11:18,916 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:11:18,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:11:18,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:11:18,917 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:11:18,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:11:18,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:11:18,918 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:11:19,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:11:19,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:11:19,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:11:19,279 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:11:19,280 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:11:19,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml [2024-09-15 20:11:19,340 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:11:19,340 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:11:19,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-15 20:11:20,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:11:21,162 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:11:21,163 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-15 20:11:21,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a3a4206b1/48b44a004c1545fa9768be2146cc3d4c/FLAGb7a44b781 [2024-09-15 20:11:21,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a3a4206b1/48b44a004c1545fa9768be2146cc3d4c [2024-09-15 20:11:21,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:11:21,551 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-15 20:11:21,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:11:21,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:11:21,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:11:21,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:11:19" (1/2) ... [2024-09-15 20:11:21,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e274be1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:11:21, skipping insertion in model container [2024-09-15 20:11:21,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:11:19" (1/2) ... [2024-09-15 20:11:21,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bd4a424 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:11:21, skipping insertion in model container [2024-09-15 20:11:21,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:11:21" (2/2) ... [2024-09-15 20:11:21,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e274be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21, skipping insertion in model container [2024-09-15 20:11:21,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:11:21" (2/2) ... [2024-09-15 20:11:21,571 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:11:21,572 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((((2 * (main__x / 4294967296)) + main__x) % 3) < 1) [2024-09-15 20:11:21,573 INFO L1541 ArrayList]: Location invariant before [L36-L112] ((((2 * (main__x / 4294967296)) + main__x) % 3) < 1) [2024-09-15 20:11:21,573 INFO L1541 ArrayList]: Location invariant before [L24-L141] ((((2 * (main__x / 4294967296)) + main__x) % 3) < 1) [2024-09-15 20:11:21,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:11:21,780 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/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-15 20:11:21,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:11:21,810 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-15 20:11:21,864 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/mod3.c.v+sep-reducer.c[2057,2070] Start Parsing Local Start Parsing Local [2024-09-15 20:11:21,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:11:21,896 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:11:21,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21 WrapperNode [2024-09-15 20:11:21,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:11:21,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 20:11:21,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 20:11:21,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 20:11:21,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:21,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:21,966 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 124 [2024-09-15 20:11:21,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 20:11:21,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:11:21,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:11:21,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:11:21,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:21,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:21,983 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:21,998 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-15 20:11:21,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:21,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:22,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:22,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:22,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:22,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:22,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:11:22,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:11:22,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:11:22,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:11:22,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (1/1) ... [2024-09-15 20:11:22,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:11:22,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 20:11:22,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-15 20:11:22,063 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-15 20:11:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:11:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:11:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:11:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:11:22,197 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:11:22,199 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:11:22,566 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-09-15 20:11:22,566 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:11:22,607 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:11:22,610 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:11:22,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:11:22 BoogieIcfgContainer [2024-09-15 20:11:22,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:11:22,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 20:11:22,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 20:11:22,631 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 20:11:22,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:11:19" (1/4) ... [2024-09-15 20:11:22,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8b9664 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:11:22, skipping insertion in model container [2024-09-15 20:11:22,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:11:21" (2/4) ... [2024-09-15 20:11:22,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8b9664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:11:22, skipping insertion in model container [2024-09-15 20:11:22,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:11:21" (3/4) ... [2024-09-15 20:11:22,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8b9664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:11:22, skipping insertion in model container [2024-09-15 20:11:22,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:11:22" (4/4) ... [2024-09-15 20:11:22,636 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-15 20:11:22,652 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 20:11:22,652 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-15 20:11:22,707 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 20:11:22,716 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=None, 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;@5f712d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 20:11:22,717 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-15 20:11:22,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 23 states have (on average 1.608695652173913) internal successors, (37), 27 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-15 20:11:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-09-15 20:11:22,728 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 20:11:22,728 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-09-15 20:11:22,729 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 1 more)] === [2024-09-15 20:11:22,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 20:11:22,734 INFO L85 PathProgramCache]: Analyzing trace with hash 3340738, now seen corresponding path program 1 times [2024-09-15 20:11:22,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 20:11:22,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067133603] [2024-09-15 20:11:22,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 20:11:22,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 20:11:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-15 20:11:22,848 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-09-15 20:11:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-09-15 20:11:22,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-09-15 20:11:22,884 INFO L326 BasicCegarLoop]: Counterexample is feasible [2024-09-15 20:11:22,885 INFO L785 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-15 20:11:22,887 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-09-15 20:11:22,888 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 4 remaining) [2024-09-15 20:11:22,888 INFO L785 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-09-15 20:11:22,888 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 20:11:22,892 INFO L408 BasicCegarLoop]: Path program histogram: [1] [2024-09-15 20:11:22,913 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 20:11:22,915 INFO L469 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-09-15 20:11:22,916 INFO L470 ceAbstractionStarter]: WitnessConsidered=3 [2024-09-15 20:11:22,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:11:22 BoogieIcfgContainer [2024-09-15 20:11:22,917 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 20:11:22,918 INFO L158 Benchmark]: Toolchain (without parser) took 1367.38ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 39.6MB in the beginning and 44.9MB in the end (delta: -5.3MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-09-15 20:11:22,919 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 44.0MB. Free memory is still 21.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:11:22,920 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 44.0MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:11:22,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.97ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 25.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-15 20:11:22,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.54ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 25.1MB in the beginning and 61.1MB in the end (delta: -36.0MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2024-09-15 20:11:22,922 INFO L158 Benchmark]: Boogie Preprocessor took 45.85ms. Allocated memory is still 81.8MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:11:22,922 INFO L158 Benchmark]: RCFGBuilder took 596.04ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 37.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-15 20:11:22,924 INFO L158 Benchmark]: TraceAbstraction took 290.31ms. Allocated memory is still 81.8MB. Free memory was 59.5MB in the beginning and 44.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-15 20:11:22,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 44.0MB. Free memory is still 21.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 44.0MB. Free memory is still 27.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.97ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 25.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.54ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 25.1MB in the beginning and 61.1MB in the end (delta: -36.0MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.85ms. Allocated memory is still 81.8MB. Free memory was 61.1MB in the beginning and 59.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.04ms. Allocated memory is still 81.8MB. Free memory was 59.0MB in the beginning and 37.0MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 290.31ms. Allocated memory is still 81.8MB. Free memory was 59.5MB in the beginning and 44.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * 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 - CounterExampleResult [Line: 24]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L1] int __return_main; [L8] int __tmp_31_0; [L9] int __tmp_28_0; [L10] int __return_65; [L11] int __tmp_22_0; [L12] int __tmp_22_1; [L13] int __tmp_25_0; [L14] int __tmp_25_1; [L17] unsigned int main__x = __VERIFIER_nondet_int(); [L18] unsigned int main__y = 1; VAL [__return_65=0, __return_main=0, __tmp_22_0=0, __tmp_22_1=0, __tmp_25_0=0, __tmp_25_1=0, __tmp_28_0=0, __tmp_31_0=0, main__x=2] [L20] int main____CPAchecker_TMP_0; [L21] main____CPAchecker_TMP_0 = __VERIFIER_nondet_int() [L22] COND TRUE !(main____CPAchecker_TMP_0 == 0) VAL [__return_65=0, __return_main=0, __tmp_22_0=0, __tmp_22_1=0, __tmp_25_0=0, __tmp_25_1=0, __tmp_28_0=0, __tmp_31_0=0, main____CPAchecker_TMP_0=1, main__x=2] [L24] //@ assert ((((2 * (main__x / 4294967296)) + main__x) % 3) < 1); VAL [__return_65=0, __return_main=0, __tmp_22_0=0, __tmp_22_1=0, __tmp_25_0=0, __tmp_25_1=0, __tmp_28_0=0, __tmp_31_0=0, main____CPAchecker_TMP_0=1] - UnprovableResult [Line: 36]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 97]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-09-15 20:11:22,963 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE