./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 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+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-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-dev-a9b967e-m [2024-09-11 20:47:22,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:22,594 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:22,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:22,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:22,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:22,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:22,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:22,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:22,634 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:22,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:22,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:22,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:22,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:22,638 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:22,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:22,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:22,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:22,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:22,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:22,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:22,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:22,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:22,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:22,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:22,645 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:22,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:22,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:22,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:22,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:22,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:22,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:22,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:22,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:22,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:22,647 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:22,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:22,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:22,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:22,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:22,649 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:22,649 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:22,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:22,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:22,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:22,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:22,912 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:22,913 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:22,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-11 20:47:24,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:24,607 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:24,612 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-11 20:47:24,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/82567572b/317954ddd37247b5969804e5a434f36b/FLAG21be39a50 [2024-09-11 20:47:24,960 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/82567572b/317954ddd37247b5969804e5a434f36b [2024-09-11 20:47:24,962 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:24,963 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:24,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-11 20:47:25,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:25,017 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:25,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:25,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:25,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:25,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:24" (1/2) ... [2024-09-11 20:47:25,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7add9c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:25, skipping insertion in model container [2024-09-11 20:47:25,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:24" (1/2) ... [2024-09-11 20:47:25,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12aa2c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:25, skipping insertion in model container [2024-09-11 20:47:25,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:25" (2/2) ... [2024-09-11 20:47:25,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7add9c8e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25, skipping insertion in model container [2024-09-11 20:47:25,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:25" (2/2) ... [2024-09-11 20:47:25,046 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:25,047 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((main__i + ((long long) 2 * main__sum)) == ((long long) main__i * main__i)) && ((main__i < ((long long) main__n + 1)) || ((main__n + ((long long) main__n * main__n)) == ((long long) 2 * main__sum)))) && (1 <= main__n)) [2024-09-11 20:47:25,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:25,234 WARN L247 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+lhb-reducer.c[1444,1457] [2024-09-11 20:47:25,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:25,255 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:25,279 WARN L247 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+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-11 20:47:25,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:25,338 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:25,339 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25 WrapperNode [2024-09-11 20:47:25,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:25,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:25,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:25,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:25,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,378 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]. [2024-09-11 20:47:25,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:25,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:25,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:25,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:25,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (1/1) ... [2024-09-11 20:47:25,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:25,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:25,438 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) [2024-09-11 20:47:25,440 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 [2024-09-11 20:47:25,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:25,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:25,488 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:25,489 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:25,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:25,490 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:47:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:47:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:47:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:25,553 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:25,555 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:25,726 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:25,726 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:25,754 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:25,754 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:25,754 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:25 BoogieIcfgContainer [2024-09-11 20:47:25,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:25,755 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:25,755 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:25,756 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:25,756 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:24" (1/4) ... [2024-09-11 20:47:25,757 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@61f792af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:25, skipping insertion in model container [2024-09-11 20:47:25,757 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:25" (2/4) ... [2024-09-11 20:47:25,757 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@61f792af and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:25, skipping insertion in model container [2024-09-11 20:47:25,757 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:25" (3/4) ... [2024-09-11 20:47:25,758 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@61f792af and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:25, skipping insertion in model container [2024-09-11 20:47:25,758 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:25" (4/4) ... [2024-09-11 20:47:25,762 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-11 20:47:25,766 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:25,767 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-11 20:47:25,768 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-11 20:47:25,768 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:25,816 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-11 20:47:25,817 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:25,818 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:25,818 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:25,819 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:25,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:25,888 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-11 20:47:25,891 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:25,892 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:25,892 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:25,894 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:25,894 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:25,895 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) [2024-09-11 20:47:25,902 INFO L158 Benchmark]: Toolchain (without parser) took 883.95ms. Allocated memory is still 174.1MB. Free memory was 142.3MB in the beginning and 105.9MB in the end (delta: 36.4MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,903 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,903 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 144.2MB in the beginning and 144.1MB in the end (delta: 34.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.29ms. Allocated memory is still 174.1MB. Free memory was 142.0MB in the beginning and 132.4MB in the end (delta: 9.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,904 INFO L158 Benchmark]: Boogie Preprocessor took 53.66ms. Allocated memory is still 174.1MB. Free memory was 132.4MB in the beginning and 130.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,905 INFO L158 Benchmark]: RCFGBuilder took 359.64ms. Allocated memory is still 174.1MB. Free memory was 129.6MB in the beginning and 115.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,905 INFO L158 Benchmark]: Referee took 145.68ms. Allocated memory is still 174.1MB. Free memory was 115.6MB in the beginning and 105.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,908 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: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 174.1MB. Free memory was 144.2MB in the beginning and 144.1MB in the end (delta: 34.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.29ms. Allocated memory is still 174.1MB. Free memory was 142.0MB in the beginning and 132.4MB in the end (delta: 9.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.66ms. Allocated memory is still 174.1MB. Free memory was 132.4MB in the beginning and 130.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.64ms. Allocated memory is still 174.1MB. Free memory was 129.6MB in the beginning and 115.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 145.68ms. Allocated memory is still 174.1MB. Free memory was 115.6MB in the beginning and 105.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:25,935 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+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-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-dev-a9b967e-m [2024-09-11 20:47:28,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:28,232 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:47:28,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:28,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:28,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:28,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:28,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:28,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:28,274 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:28,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:28,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:28,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:28,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:28,275 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:28,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:28,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:28,276 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:28,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:28,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:28,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:28,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:28,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:28,278 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:47:28,278 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:47:28,278 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:28,278 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:47:28,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:28,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:28,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:28,279 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:28,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:28,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:28,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:28,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:28,280 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:28,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:28,281 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:28,285 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:47:28,286 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:47:28,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:28,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:28,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:28,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:28,287 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:47:28,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:28,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:28,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:28,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:28,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:28,653 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:28,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-11 20:47:30,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:30,349 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:30,352 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-11 20:47:30,362 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9d932e13d/c9d6d5a9a75a4b6888caea07bf3ecc21/FLAGf20f136ed [2024-09-11 20:47:30,729 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9d932e13d/c9d6d5a9a75a4b6888caea07bf3ecc21 [2024-09-11 20:47:30,731 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:30,732 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:30,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-11 20:47:30,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:30,786 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:30,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:30,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:30,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:30,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:30" (1/2) ... [2024-09-11 20:47:30,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c26fbca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30, skipping insertion in model container [2024-09-11 20:47:30,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:30" (1/2) ... [2024-09-11 20:47:30,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36bdae12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30, skipping insertion in model container [2024-09-11 20:47:30,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:30" (2/2) ... [2024-09-11 20:47:30,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c26fbca and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:30, skipping insertion in model container [2024-09-11 20:47:30,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:30" (2/2) ... [2024-09-11 20:47:30,810 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:30,811 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((main__i + ((long long) 2 * main__sum)) == ((long long) main__i * main__i)) && ((main__i < ((long long) main__n + 1)) || ((main__n + ((long long) main__n * main__n)) == ((long long) 2 * main__sum)))) && (1 <= main__n)) [2024-09-11 20:47:30,829 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:31,035 WARN L247 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+lhb-reducer.c[1444,1457] [2024-09-11 20:47:31,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:31,059 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:31,080 WARN L247 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+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-11 20:47:31,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:31,138 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:31,138 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31 WrapperNode [2024-09-11 20:47:31,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:31,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:31,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:31,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:31,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,183 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]. [2024-09-11 20:47:31,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:31,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:31,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:31,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:31,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (1/1) ... [2024-09-11 20:47:31,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:31,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:31,245 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) [2024-09-11 20:47:31,248 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 [2024-09-11 20:47:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:31,295 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:31,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:31,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-11 20:47:31,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-11 20:47:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-11 20:47:31,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:31,367 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:31,369 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:33,593 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:33,593 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:33,627 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:33,629 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:33,629 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:33 BoogieIcfgContainer [2024-09-11 20:47:33,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:33,630 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:33,631 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:33,632 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:33,632 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:30" (1/4) ... [2024-09-11 20:47:33,632 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13026dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:33, skipping insertion in model container [2024-09-11 20:47:33,632 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:30" (2/4) ... [2024-09-11 20:47:33,633 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13026dda and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:33, skipping insertion in model container [2024-09-11 20:47:33,633 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:31" (3/4) ... [2024-09-11 20:47:33,633 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13026dda and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:33, skipping insertion in model container [2024-09-11 20:47:33,633 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:33" (4/4) ... [2024-09-11 20:47:33,636 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-11 20:47:33,639 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:33,640 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-11 20:47:33,640 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-11 20:47:33,641 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:33,703 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-11 20:47:33,704 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:33,705 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:33,705 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:33,707 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:33,708 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:33,764 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-11 20:47:33,766 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:33,766 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:33,766 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:33,767 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:33,767 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:33,768 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) [2024-09-11 20:47:33,773 INFO L158 Benchmark]: Toolchain (without parser) took 2986.28ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 27.6MB in the beginning and 45.9MB in the end (delta: -18.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,774 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 44.0MB. Free memory is still 21.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:33,775 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:33,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.99ms. Allocated memory is still 62.9MB. Free memory was 27.4MB in the beginning and 32.8MB in the end (delta: -5.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,776 INFO L158 Benchmark]: Boogie Preprocessor took 67.65ms. Allocated memory is still 62.9MB. Free memory was 32.8MB in the beginning and 30.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,778 INFO L158 Benchmark]: RCFGBuilder took 2422.22ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 30.4MB in the beginning and 57.9MB in the end (delta: -27.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,778 INFO L158 Benchmark]: Referee took 141.47ms. Allocated memory is still 88.1MB. Free memory was 57.9MB in the beginning and 45.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,781 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: * CDTParser took 0.90ms. Allocated memory is still 44.0MB. Free memory is still 21.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.99ms. Allocated memory is still 62.9MB. Free memory was 27.4MB in the beginning and 32.8MB in the end (delta: -5.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.65ms. Allocated memory is still 62.9MB. Free memory was 32.8MB in the beginning and 30.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2422.22ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 30.4MB in the beginning and 57.9MB in the end (delta: -27.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Referee took 141.47ms. Allocated memory is still 88.1MB. Free memory was 57.9MB in the beginning and 45.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:33,816 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug