./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 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+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-dev-a9b967e-m [2024-09-11 20:47:22,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:22,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:22,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:22,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:22,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:22,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:22,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:22,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:22,774 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:22,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:22,775 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:22,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:22,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:22,776 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:22,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:22,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:22,776 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:22,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:22,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:22,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:22,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:22,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:22,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:22,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:22,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:22,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:22,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:22,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:22,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:22,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:22,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:22,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:22,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:22,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:22,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:22,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:22,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:22,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:22,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:22,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:22,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:22,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:23,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:23,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:23,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:23,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:23,088 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:23,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-11 20:47:24,514 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:24,742 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:24,743 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-11 20:47:24,752 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/edd21baf7/5576502603474e5791b014eb8bdcec78/FLAGe948060b1 [2024-09-11 20:47:24,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/edd21baf7/5576502603474e5791b014eb8bdcec78 [2024-09-11 20:47:24,771 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:24,772 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:24,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-11 20:47:24,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:24,830 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:24,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:24,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:24,839 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:24,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:24" (1/2) ... [2024-09-11 20:47:24,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743c9ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:24, skipping insertion in model container [2024-09-11 20:47:24,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:24" (1/2) ... [2024-09-11 20:47:24,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d58e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:24, skipping insertion in model container [2024-09-11 20:47:24,845 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 08:47:24" (2/2) ... [2024-09-11 20:47:24,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@743c9ff6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:24, skipping insertion in model container [2024-09-11 20:47:24,845 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 08:47:24" (2/2) ... [2024-09-11 20:47:24,854 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:24,855 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((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 20:47:24,875 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:25,047 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+cfa-reducer.c[1014,1027] [2024-09-11 20:47:25,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:25,064 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:25,079 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+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-11 20:47:25,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:25,119 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:25,120 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 20:47:25,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:25,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:25,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:25,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:25,133 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 20:47:25,134 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 20:47:25,140 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 20:47:25,161 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 20:47:25,161 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 20:47:25,162 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 20:47:25,165 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 20:47:25,169 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 20:47:25,171 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 20:47:25,172 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 20:47:25,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:25,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:25,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:25,174 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:25,175 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 20:47:25,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:25,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:25,211 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 20:47:25,215 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 20:47:25,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:47:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:47:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:47:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:25,348 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:25,351 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:25,509 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:25,509 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:25,548 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:25,549 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:25,549 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 20:47:25,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:25,550 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:25,550 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:25,550 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:25,551 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:24" (1/4) ... [2024-09-11 20:47:25,551 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6641a80b 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 20:47:25,552 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 08:47:24" (2/4) ... [2024-09-11 20:47:25,554 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6641a80b 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 20:47:25,554 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 20:47:25,554 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6641a80b 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 20:47:25,554 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 20:47:25,555 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-11 20:47:25,563 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:25,564 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:47:25,564 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-11 20:47:25,565 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:25,614 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:47:25,617 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:25,618 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:25,619 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:25,620 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:25,622 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:25,664 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:25,665 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:25,665 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:25,666 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:25,666 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:25,666 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:25,667 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 20:47:25,673 INFO L158 Benchmark]: Toolchain (without parser) took 842.50ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 108.4MB in the end (delta: 34.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,675 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,675 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.82ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 130.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,677 INFO L158 Benchmark]: Boogie Preprocessor took 52.19ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,678 INFO L158 Benchmark]: RCFGBuilder took 375.05ms. Allocated memory is still 176.2MB. Free memory was 128.0MB in the beginning and 114.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,679 INFO L158 Benchmark]: Referee took 121.99ms. Allocated memory is still 176.2MB. Free memory was 114.0MB in the beginning and 108.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,682 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 0.17ms. Allocated memory is still 176.2MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 176.2MB. Free memory is still 145.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.82ms. Allocated memory is still 176.2MB. Free memory was 143.3MB in the beginning and 130.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.19ms. Allocated memory is still 176.2MB. Free memory was 130.1MB in the beginning and 128.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.05ms. Allocated memory is still 176.2MB. Free memory was 128.0MB in the beginning and 114.0MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 121.99ms. Allocated memory is still 176.2MB. Free memory was 114.0MB in the beginning and 108.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:25,711 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.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-dev-a9b967e-m [2024-09-11 20:47:27,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:27,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:47:27,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:27,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:28,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:28,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:28,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:28,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:28,033 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:28,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:28,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:28,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:28,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:28,035 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:28,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:28,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:28,039 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:28,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:28,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:28,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:28,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:28,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:28,041 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:47:28,041 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:47:28,041 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:28,042 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:47:28,042 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:28,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:28,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:28,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:28,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:28,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:28,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:28,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:28,044 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:28,044 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:28,045 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:28,045 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:47:28,045 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:47:28,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:28,046 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:28,046 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:28,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:28,047 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:47:28,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:28,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:28,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:28,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:28,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:28,384 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:28,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-11 20:47:29,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:30,017 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:30,017 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-11 20:47:30,024 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ad4edb3b0/3f01b181c5f64d8092943831c049283d/FLAG97cef221b [2024-09-11 20:47:30,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ad4edb3b0/3f01b181c5f64d8092943831c049283d [2024-09-11 20:47:30,400 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:30,401 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:30,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-11 20:47:30,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:30,459 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:30,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:30,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:30,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:30,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:30" (1/2) ... [2024-09-11 20:47:30,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449c8a4b 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 20:47:30,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:30" (1/2) ... [2024-09-11 20:47:30,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2bdc105b 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 20:47:30,475 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 20:47:30,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449c8a4b 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 20:47:30,476 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 20:47:30,485 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:30,486 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((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 20:47:30,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:30,706 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+cfa-reducer.c[1014,1027] [2024-09-11 20:47:30,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:30,738 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:30,756 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+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-11 20:47:30,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:30,809 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:30,810 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:30 WrapperNode [2024-09-11 20:47:30,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:30,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:30,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:30,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:30,824 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,824 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,832 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,853 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 20:47:30,854 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,854 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,865 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,867 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,870 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,871 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:30,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:30,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:30,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:30,878 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 08:47:30" (1/1) ... [2024-09-11 20:47:30,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:30,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:30,909 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 20:47:30,912 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 20:47:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:30,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-11 20:47:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-11 20:47:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:31,055 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:31,058 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:32,787 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:32,788 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:32,830 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:32,831 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:32,834 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:32 BoogieIcfgContainer [2024-09-11 20:47:32,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:32,835 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:32,835 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:32,836 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:32,836 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:30" (1/4) ... [2024-09-11 20:47:32,837 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f761a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:32, skipping insertion in model container [2024-09-11 20:47:32,837 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 20:47:32,837 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f761a38 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:32, skipping insertion in model container [2024-09-11 20:47:32,837 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 08:47:30" (3/4) ... [2024-09-11 20:47:32,837 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f761a38 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:32, skipping insertion in model container [2024-09-11 20:47:32,837 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 08:47:32" (4/4) ... [2024-09-11 20:47:32,840 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-11 20:47:32,844 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:32,845 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:47:32,845 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-11 20:47:32,846 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:32,899 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:47:32,900 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:32,900 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:32,902 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:32,903 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:32,905 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:32,942 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:32,943 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:32,943 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:32,944 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:32,948 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:32,949 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:32,949 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 20:47:32,955 INFO L158 Benchmark]: Toolchain (without parser) took 2495.54ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 62.6MB in the end (delta: -10.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:32,956 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory was 35.6MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:32,956 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:32,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.54ms. Allocated memory is still 86.0MB. Free memory was 51.9MB in the beginning and 60.9MB in the end (delta: -9.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-09-11 20:47:32,957 INFO L158 Benchmark]: Boogie Preprocessor took 63.69ms. Allocated memory is still 86.0MB. Free memory was 60.9MB in the beginning and 58.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:32,957 INFO L158 Benchmark]: RCFGBuilder took 1958.74ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 43.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:32,958 INFO L158 Benchmark]: Referee took 118.34ms. Allocated memory is still 86.0MB. Free memory was 43.4MB in the beginning and 62.6MB in the end (delta: -19.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:32,963 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 0.12ms. Allocated memory is still 56.6MB. Free memory was 35.6MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 86.0MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.54ms. Allocated memory is still 86.0MB. Free memory was 51.9MB in the beginning and 60.9MB in the end (delta: -9.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.69ms. Allocated memory is still 86.0MB. Free memory was 60.9MB in the beginning and 58.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1958.74ms. Allocated memory is still 86.0MB. Free memory was 58.5MB in the beginning and 43.4MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 118.34ms. Allocated memory is still 86.0MB. Free memory was 43.4MB in the beginning and 62.6MB in the end (delta: -19.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:33,001 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