./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-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/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.p+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+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-04d6fb3-m [2024-09-15 20:05:52,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:05:52,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-15 20:05:52,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:05:52,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:05:52,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:05:52,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:05:52,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:05:52,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:05:52,511 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:05:52,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:05:52,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:05:52,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:05:52,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:05:52,513 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:05:52,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:05:52,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:05:52,514 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:05:52,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:05:52,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:05:52,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:05:52,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:05:52,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:05:52,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:05:52,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:05:52,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:05:52,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:05:52,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:05:52,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:05:52,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:05:52,518 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-15 20:05:52,518 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:05:52,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:05:52,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:52,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:05:52,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:05:52,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:05:52,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:05:52,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:05:52,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:05:52,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:05:52,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:05:52,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:05:52,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:05:52,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:05:52,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:05:52,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:05:52,781 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:05:52,781 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:05:52,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-15 20:05:52,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:05:52,840 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:05:52,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-15 20:05:54,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:05:54,371 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:05:54,372 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-15 20:05:54,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/78a67200d/97455c2c1bef44b99a0892ff3c26d429/FLAGa8f246809 [2024-09-15 20:05:54,388 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/78a67200d/97455c2c1bef44b99a0892ff3c26d429 [2024-09-15 20:05:54,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:05:54,389 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-15 20:05:54,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:54,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:05:54,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:05:54,395 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 08:05:52" (1/2) ... [2024-09-15 20:05:54,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df8c39b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:54, skipping insertion in model container [2024-09-15 20:05:54,396 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 08:05:52" (1/2) ... [2024-09-15 20:05:54,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a259fa4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:54, skipping insertion in model container [2024-09-15 20:05:54,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:54" (2/2) ... [2024-09-15 20:05:54,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df8c39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54, skipping insertion in model container [2024-09-15 20:05:54,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:54" (2/2) ... [2024-09-15 20:05:54,403 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:05:54,404 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-15 20:05:54,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:05:54,550 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.p+cfa-reducer.c[1014,1027] [2024-09-15 20:05:54,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:05:54,563 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:05:54,576 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.p+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-15 20:05:54,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:05:54,612 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:05:54,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54 WrapperNode [2024-09-15 20:05:54,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:54,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:05:54,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:05:54,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:05:54,626 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,634 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,645 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 20:05:54,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:05:54,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:05:54,673 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:05:54,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:05:54,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:54,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-15 20:05:54,727 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) [2024-09-15 20:05:54,764 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 [2024-09-15 20:05:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 20:05:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:05:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-15 20:05:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-15 20:05:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 20:05:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-15 20:05:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-15 20:05:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-15 20:05:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:05:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-15 20:05:54,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:05:54,895 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:05:54,896 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:05:55,054 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:05:55,107 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:05:55,108 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:05:55,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:05:55 BoogieIcfgContainer [2024-09-15 20:05:55,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:05:55,109 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-15 20:05:55,110 INFO L270 PluginConnector]: Initializing Referee... [2024-09-15 20:05:55,111 INFO L274 PluginConnector]: Referee initialized [2024-09-15 20:05:55,111 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:52" (1/4) ... [2024-09-15 20:05:55,111 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21dd1060 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.09 08:05:55, skipping insertion in model container [2024-09-15 20:05:55,112 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.09 08:05:54" (2/4) ... [2024-09-15 20:05:55,112 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21dd1060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:05:55, skipping insertion in model container [2024-09-15 20:05:55,112 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (3/4) ... [2024-09-15 20:05:55,112 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21dd1060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:05:55, skipping insertion in model container [2024-09-15 20:05:55,112 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:05:55" (4/4) ... [2024-09-15 20:05:55,113 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-15 20:05:55,117 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-15 20:05:55,117 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-15 20:05:55,117 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-15 20:05:55,118 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-15 20:05:55,172 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-15 20:05:55,174 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:55,174 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:55,175 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:55,175 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:55,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:55,231 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-15 20:05:55,237 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:55,238 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:55,238 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:55,238 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:55,239 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-15 20:05:55,239 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:144) 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) [2024-09-15 20:05:55,250 INFO L158 Benchmark]: Toolchain (without parser) took 860.10ms. Allocated memory is still 180.4MB. Free memory was 109.9MB in the beginning and 134.9MB in the end (delta: -25.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:55,254 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 180.4MB. Free memory was 136.7MB in the beginning and 136.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:55,255 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:55,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.30ms. Allocated memory is still 180.4MB. Free memory was 109.7MB in the beginning and 96.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,256 INFO L158 Benchmark]: Boogie Preprocessor took 55.61ms. Allocated memory is still 180.4MB. Free memory was 96.5MB in the beginning and 93.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,256 INFO L158 Benchmark]: RCFGBuilder took 439.03ms. Allocated memory is still 180.4MB. Free memory was 93.8MB in the beginning and 141.1MB in the end (delta: -47.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,257 INFO L158 Benchmark]: Referee took 139.65ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 134.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,264 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 0.15ms. Allocated memory is still 180.4MB. Free memory was 136.7MB in the beginning and 136.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.30ms. Allocated memory is still 180.4MB. Free memory was 109.7MB in the beginning and 96.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.61ms. Allocated memory is still 180.4MB. Free memory was 96.5MB in the beginning and 93.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 439.03ms. Allocated memory is still 180.4MB. Free memory was 93.8MB in the beginning and 141.1MB in the end (delta: -47.4MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Referee took 139.65ms. Allocated memory is still 180.4MB. Free memory was 141.1MB in the beginning and 134.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-15 20:05:55,328 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 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.p+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+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-04d6fb3-m [2024-09-15 20:05:57,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:05:57,410 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-15 20:05:57,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:05:57,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:05:57,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:05:57,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:05:57,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:05:57,467 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:05:57,470 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:05:57,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:05:57,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:05:57,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:05:57,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:05:57,475 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:05:57,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:05:57,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:05:57,476 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:05:57,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:05:57,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:05:57,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:05:57,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:05:57,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:05:57,478 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-15 20:05:57,478 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-15 20:05:57,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:05:57,478 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-15 20:05:57,478 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:05:57,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:05:57,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:05:57,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:05:57,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:05:57,480 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-15 20:05:57,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:05:57,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:05:57,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:57,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:05:57,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:05:57,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:05:57,481 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-15 20:05:57,482 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-15 20:05:57,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:05:57,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:05:57,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:05:57,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:05:57,483 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-15 20:05:57,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:05:57,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:05:57,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:05:57,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:05:57,761 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:05:57,766 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:05:57,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-15 20:05:57,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:05:57,828 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:05:57,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-15 20:05:59,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:05:59,968 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:05:59,968 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-15 20:05:59,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3d8bf57b2/a944d4346a4e4d82833857ae880b4bc3/FLAG8376596b2 [2024-09-15 20:05:59,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3d8bf57b2/a944d4346a4e4d82833857ae880b4bc3 [2024-09-15 20:05:59,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:05:59,989 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-15 20:05:59,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:59,992 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:05:59,996 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:05:59,996 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 08:05:57" (1/2) ... [2024-09-15 20:05:59,997 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2239f7d2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:59, skipping insertion in model container [2024-09-15 20:05:59,997 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 08:05:57" (1/2) ... [2024-09-15 20:05:59,998 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c356353 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:59, skipping insertion in model container [2024-09-15 20:05:59,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:59" (2/2) ... [2024-09-15 20:05:59,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2239f7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:59, skipping insertion in model container [2024-09-15 20:05:59,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:59" (2/2) ... [2024-09-15 20:06:00,004 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:06:00,005 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-15 20:06:00,021 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:06:00,188 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.p+cfa-reducer.c[1014,1027] [2024-09-15 20:06:00,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:06:00,214 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:06:00,229 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.p+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-15 20:06:00,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:06:00,275 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:06:00,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00 WrapperNode [2024-09-15 20:06:00,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:06:00,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:06:00,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:06:00,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:06:00,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,307 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 20:06:00,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:06:00,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:06:00,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:06:00,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:06:00,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:06:00,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-15 20:06:00,355 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) [2024-09-15 20:06:00,368 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 [2024-09-15 20:06:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 20:06:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:06:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-15 20:06:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-15 20:06:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 20:06:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-15 20:06:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-15 20:06:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-15 20:06:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:06:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-15 20:06:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-15 20:06:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:06:00,465 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:06:00,470 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:06:04,774 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:06:04,865 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:06:04,867 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:06:04,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:06:04 BoogieIcfgContainer [2024-09-15 20:06:04,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:06:04,870 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-15 20:06:04,871 INFO L270 PluginConnector]: Initializing Referee... [2024-09-15 20:06:04,871 INFO L274 PluginConnector]: Referee initialized [2024-09-15 20:06:04,872 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:57" (1/4) ... [2024-09-15 20:06:04,875 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4716c302 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.09 08:06:04, skipping insertion in model container [2024-09-15 20:06:04,876 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.09 08:05:59" (2/4) ... [2024-09-15 20:06:04,876 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4716c302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:06:04, skipping insertion in model container [2024-09-15 20:06:04,876 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:06:00" (3/4) ... [2024-09-15 20:06:04,876 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4716c302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:06:04, skipping insertion in model container [2024-09-15 20:06:04,876 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:06:04" (4/4) ... [2024-09-15 20:06:04,882 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-15 20:06:04,888 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-15 20:06:04,892 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-15 20:06:04,895 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-15 20:06:04,896 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-15 20:06:04,980 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-15 20:06:04,985 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:06:04,985 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:06:04,986 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:06:04,988 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:06:04,990 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:06:05,091 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-15 20:06:05,100 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:06:05,100 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:06:05,100 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:06:05,101 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:06:05,101 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-15 20:06:05,106 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:144) 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) [2024-09-15 20:06:05,110 INFO L158 Benchmark]: Toolchain (without parser) took 5119.61ms. Allocated memory was 81.8MB in the beginning and 157.3MB in the end (delta: 75.5MB). Free memory was 43.5MB in the beginning and 132.7MB in the end (delta: -89.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-09-15 20:06:05,116 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 81.8MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:06:05,117 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:06:05,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.05ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 55.6MB in the end (delta: -12.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-09-15 20:06:05,118 INFO L158 Benchmark]: Boogie Preprocessor took 43.64ms. Allocated memory is still 81.8MB. Free memory was 55.6MB in the beginning and 53.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:06:05,118 INFO L158 Benchmark]: RCFGBuilder took 4548.63ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 39.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-15 20:06:05,119 INFO L158 Benchmark]: Referee took 237.71ms. Allocated memory was 81.8MB in the beginning and 157.3MB in the end (delta: 75.5MB). Free memory was 39.5MB in the beginning and 132.7MB in the end (delta: -93.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-15 20:06:05,126 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 0.11ms. Allocated memory is still 81.8MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.05ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 55.6MB in the end (delta: -12.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.64ms. Allocated memory is still 81.8MB. Free memory was 55.6MB in the beginning and 53.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4548.63ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 39.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 237.71ms. Allocated memory was 81.8MB in the beginning and 157.3MB in the end (delta: 75.5MB). Free memory was 39.5MB in the beginning and 132.7MB in the end (delta: -93.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-15 20:06:05,214 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