./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_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-27b4987-m [2024-09-21 12:47:53,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:53,900 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 12:47:53,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:53,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:53,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:53,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:53,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:53,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:53,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:53,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:53,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:53,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:53,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:53,919 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:53,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:53,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:53,920 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:53,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:47:53,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:53,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:53,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:53,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:53,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:53,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:53,922 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:53,922 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:53,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:53,923 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:53,923 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:53,924 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:53,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:53,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:53,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:53,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:53,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:53,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:53,925 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:47:53,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:47:53,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:53,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:53,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:53,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:53,927 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:54,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:54,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:54,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:54,176 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:54,177 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:54,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:54,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:54,251 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:54,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-21 12:47:55,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:55,729 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:55,730 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-21 12:47:55,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/216825cf0/668d9e825a45464ea1d302c4731057d1/FLAG4169cca9f [2024-09-21 12:47:56,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/216825cf0/668d9e825a45464ea1d302c4731057d1 [2024-09-21 12:47:56,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:56,150 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:56,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:56,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:56,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:56,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:54" (1/2) ... [2024-09-21 12:47:56,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5702eb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:54" (1/2) ... [2024-09-21 12:47:56,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@286a4529 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:56" (2/2) ... [2024-09-21 12:47:56,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5702eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:56" (2/2) ... [2024-09-21 12:47:56,167 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:56,167 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1)))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-21 12:47:56,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:56,290 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-21 12:47:56,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:56,308 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:56,318 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-21 12:47:56,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:56,351 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:56,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56 WrapperNode [2024-09-21 12:47:56,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:56,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:56,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:56,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:56,362 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,375 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]. [2024-09-21 12:47:56,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,376 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:56,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:56,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:56,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:56,383 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:56,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 12:47:56,413 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 12:47:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:56,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:56,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:47:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:47:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:47:56,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:56,576 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:56,578 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:56,675 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:56,695 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:56,695 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:56,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:56 BoogieIcfgContainer [2024-09-21 12:47:56,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:56,696 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:56,697 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:56,697 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:56,697 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:54" (1/4) ... [2024-09-21 12:47:56,698 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4586e1b0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,698 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:56" (2/4) ... [2024-09-21 12:47:56,698 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4586e1b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,698 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (3/4) ... [2024-09-21 12:47:56,698 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4586e1b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,699 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:56" (4/4) ... [2024-09-21 12:47:56,699 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-21 12:47:56,702 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:56,703 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:47:56,703 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:47:56,703 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:56,739 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:47:56,740 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:56,741 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:56,741 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:56,742 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:56,743 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:56,773 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:47:56,774 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:56,774 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:56,774 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:56,775 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:56,775 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:56,776 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 12:47:56,779 INFO L158 Benchmark]: Toolchain (without parser) took 629.02ms. Allocated memory is still 207.6MB. Free memory was 137.4MB in the beginning and 165.8MB in the end (delta: -28.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,780 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,780 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.61ms. Allocated memory is still 207.6MB. Free memory was 137.3MB in the beginning and 124.1MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,781 INFO L158 Benchmark]: Boogie Preprocessor took 29.36ms. Allocated memory is still 207.6MB. Free memory was 124.1MB in the beginning and 122.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,781 INFO L158 Benchmark]: RCFGBuilder took 313.42ms. Allocated memory is still 207.6MB. Free memory was 121.9MB in the beginning and 171.3MB in the end (delta: -49.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,781 INFO L158 Benchmark]: Referee took 81.59ms. Allocated memory is still 207.6MB. Free memory was 171.3MB in the beginning and 165.8MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.13ms. Allocated memory is still 115.3MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.61ms. Allocated memory is still 207.6MB. Free memory was 137.3MB in the beginning and 124.1MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.36ms. Allocated memory is still 207.6MB. Free memory was 124.1MB in the beginning and 122.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.42ms. Allocated memory is still 207.6MB. Free memory was 121.9MB in the beginning and 171.3MB in the end (delta: -49.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 81.59ms. Allocated memory is still 207.6MB. Free memory was 171.3MB in the beginning and 165.8MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:56,808 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.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-27b4987-m [2024-09-21 12:47:58,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:58,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 12:47:58,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:58,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:58,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:58,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:58,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:58,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:58,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:58,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:58,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:58,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:58,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:58,759 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:58,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:58,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:58,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:58,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:58,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:58,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:58,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:58,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:58,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 12:47:58,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 12:47:58,763 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:58,764 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 12:47:58,764 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:58,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:58,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:58,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:58,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:58,765 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:58,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:58,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:58,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:58,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:58,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:58,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:58,766 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 12:47:58,766 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 12:47:58,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:58,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:58,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:58,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:58,768 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 12:47:58,768 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:59,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:59,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:59,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:59,044 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:59,045 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:59,046 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:59,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:59,083 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:59,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-21 12:48:00,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:48:00,723 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:48:00,724 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-21 12:48:00,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9a8cca66b/574b0cacab4b4d8f942ef171dc109412/FLAG3254cbd92 [2024-09-21 12:48:01,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9a8cca66b/574b0cacab4b4d8f942ef171dc109412 [2024-09-21 12:48:01,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:48:01,151 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:48:01,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:48:01,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:48:01,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:48:01,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:59" (1/2) ... [2024-09-21 12:48:01,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba4585f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:59" (1/2) ... [2024-09-21 12:48:01,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c64fc08 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:48:01" (2/2) ... [2024-09-21 12:48:01,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba4585f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:48:01" (2/2) ... [2024-09-21 12:48:01,170 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:48:01,170 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1)))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-21 12:48:01,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:48:01,297 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-21 12:48:01,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:48:01,313 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:48:01,324 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-21 12:48:01,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:48:01,359 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:48:01,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01 WrapperNode [2024-09-21 12:48:01,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:48:01,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:48:01,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:48:01,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:48:01,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,382 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]. [2024-09-21 12:48:01,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,386 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:48:01,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:48:01,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:48:01,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:48:01,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:48:01,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:48:01,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 12:48:01,448 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 12:48:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:48:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:48:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:48:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:48:01,484 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:48:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:48:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:48:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-21 12:48:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:48:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-21 12:48:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-21 12:48:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:48:01,543 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:48:01,545 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:48:05,765 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:48:05,790 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:48:05,791 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:48:05,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:48:05 BoogieIcfgContainer [2024-09-21 12:48:05,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:48:05,791 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:48:05,792 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:48:05,792 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:48:05,792 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:59" (1/4) ... [2024-09-21 12:48:05,792 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7ba7c834 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:48:05, skipping insertion in model container [2024-09-21 12:48:05,793 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:48:01" (2/4) ... [2024-09-21 12:48:05,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7ba7c834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:48:05, skipping insertion in model container [2024-09-21 12:48:05,793 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01" (3/4) ... [2024-09-21 12:48:05,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7ba7c834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:48:05, skipping insertion in model container [2024-09-21 12:48:05,793 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:48:05" (4/4) ... [2024-09-21 12:48:05,794 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-21 12:48:05,796 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:48:05,797 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:48:05,797 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:48:05,797 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:48:05,825 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:48:05,826 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:48:05,826 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:48:05,827 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:48:05,827 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:48:05,828 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:48:05,848 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:48:05,849 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:48:05,849 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:48:05,849 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:48:05,850 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:48:05,850 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:48:05,851 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 12:48:05,854 INFO L158 Benchmark]: Toolchain (without parser) took 4702.00ms. Allocated memory is still 104.9MB. Free memory was 78.7MB in the beginning and 67.7MB in the end (delta: 11.0MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-09-21 12:48:05,854 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 104.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:48:05,854 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:48:05,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.80ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 65.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 12:48:05,855 INFO L158 Benchmark]: Boogie Preprocessor took 30.28ms. Allocated memory is still 104.9MB. Free memory was 65.1MB in the beginning and 62.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-21 12:48:05,856 INFO L158 Benchmark]: RCFGBuilder took 4400.21ms. Allocated memory is still 104.9MB. Free memory was 62.7MB in the beginning and 75.1MB in the end (delta: -12.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-09-21 12:48:05,856 INFO L158 Benchmark]: Referee took 61.22ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 67.7MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 12:48:05,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 71.3MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 104.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.80ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 65.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.28ms. Allocated memory is still 104.9MB. Free memory was 65.1MB in the beginning and 62.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4400.21ms. Allocated memory is still 104.9MB. Free memory was 62.7MB in the beginning and 75.1MB in the end (delta: -12.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Referee took 61.22ms. Allocated memory is still 104.9MB. Free memory was 75.1MB in the beginning and 67.7MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:48:05,883 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug