./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:47:22,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:22,722 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:22,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:22,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:22,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:22,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:22,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:22,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:22,748 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:22,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:22,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:22,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:22,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:22,752 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:22,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:22,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:22,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:22,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:22,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:22,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:22,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:22,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:22,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:22,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:22,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:22,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:22,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:22,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:22,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:22,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:22,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:22,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:22,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:22,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:22,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:22,761 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:22,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:22,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:22,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:22,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:22,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:22,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:23,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:23,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:23,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:23,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:23,052 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:23,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-11 20:47:24,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:24,689 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:24,690 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-11 20:47:24,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/475099022/7b1f6bad408946f3817e35fa1c36e2f1/FLAG8e86a19bf [2024-09-11 20:47:25,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/475099022/7b1f6bad408946f3817e35fa1c36e2f1 [2024-09-11 20:47:25,089 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:25,090 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:25,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-11 20:47:25,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:25,139 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:25,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:25,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:25,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:25,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:25" (1/2) ... [2024-09-11 20:47:25,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ca1e4c 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 20:47:25,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:25" (1/2) ... [2024-09-11 20:47:25,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5fceabe4 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 20:47:25,152 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 20:47:25,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ca1e4c 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 20:47:25,153 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 20:47:25,159 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:25,161 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 20:47:25,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:25,390 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.v+cfa-reducer.c[1014,1027] [2024-09-11 20:47:25,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:25,409 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:25,427 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.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-11 20:47:25,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:25,478 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:25,478 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 20:47:25,479 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:25,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:25,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:25,480 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:25,491 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 20:47:25,491 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 20:47:25,496 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 20:47:25,507 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 20:47:25,507 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 20:47:25,508 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 20:47:25,511 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 20:47:25,512 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 20:47:25,513 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 20:47:25,514 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 20:47:25,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:25,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:25,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:25,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:25,517 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 20:47:25,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:25,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:25,545 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 20:47:25,547 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 20:47:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:25,586 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:47:25,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:25,647 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:25,650 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:25,785 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:25,786 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:25,817 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:25,818 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:25,818 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 20:47:25,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:25,819 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:25,819 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:25,820 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:25,820 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:25" (1/4) ... [2024-09-11 20:47:25,820 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7d07e205 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 20:47:25,820 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 20:47:25,820 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7d07e205 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 20:47:25,820 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 20:47:25,821 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7d07e205 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 20:47:25,821 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 20:47:25,822 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-11 20:47:25,825 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:25,826 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:47:25,826 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-11 20:47:25,827 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:25,859 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:47:25,860 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:25,861 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:25,861 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:25,864 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:25,865 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:25,908 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:25,909 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:25,911 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:25,912 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:25,912 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:25,913 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:25,914 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 20:47:25,919 INFO L158 Benchmark]: Toolchain (without parser) took 778.38ms. Allocated memory is still 157.3MB. Free memory was 90.5MB in the beginning and 99.4MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,919 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,922 INFO L158 Benchmark]: Witness Parser took 0.32ms. Allocated memory is still 157.3MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.38ms. Allocated memory is still 157.3MB. Free memory was 90.2MB in the beginning and 121.0MB in the end (delta: -30.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,923 INFO L158 Benchmark]: Boogie Preprocessor took 36.04ms. Allocated memory is still 157.3MB. Free memory was 121.0MB in the beginning and 119.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:25,924 INFO L158 Benchmark]: RCFGBuilder took 301.89ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 105.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,924 INFO L158 Benchmark]: Referee took 98.32ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 99.4MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:25,927 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 0.18ms. Allocated memory is still 102.8MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.32ms. Allocated memory is still 157.3MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 336.38ms. Allocated memory is still 157.3MB. Free memory was 90.2MB in the beginning and 121.0MB in the end (delta: -30.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.04ms. Allocated memory is still 157.3MB. Free memory was 121.0MB in the beginning and 119.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 301.89ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 105.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 98.32ms. Allocated memory is still 157.3MB. Free memory was 105.1MB in the beginning and 99.4MB in the end (delta: 5.7MB). 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 20:47:25,949 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.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:47:28,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:28,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:47:28,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:28,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:28,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:28,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:28,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:28,225 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:28,226 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:28,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:28,227 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:28,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:28,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:28,228 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:28,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:28,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:28,232 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:28,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:28,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:28,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:28,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:28,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:28,234 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:47:28,234 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:47:28,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:28,238 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:47:28,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:28,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:28,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:28,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:28,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:28,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:28,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:28,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:28,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:28,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:28,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:28,241 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:47:28,241 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:47:28,241 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:28,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:28,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:28,242 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:28,242 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:47:28,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:28,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:28,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:28,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:28,603 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:28,606 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:28,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-11 20:47:28,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:28,660 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:28,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-11 20:47:30,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:30,458 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:30,459 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-11 20:47:30,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/cd5c9dfd7/acb7307fea9045cd80015fb3fc97b535/FLAGf1455b569 [2024-09-11 20:47:30,482 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/cd5c9dfd7/acb7307fea9045cd80015fb3fc97b535 [2024-09-11 20:47:30,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:30,485 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:30,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:30,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:30,493 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:30,494 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 08:47:28" (1/2) ... [2024-09-11 20:47:30,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1083e83 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 20:47:30,495 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 08:47:28" (1/2) ... [2024-09-11 20:47:30,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62bfedbb 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 20:47:30,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:30" (2/2) ... [2024-09-11 20:47:30,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1083e83 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 20:47:30,502 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:30" (2/2) ... [2024-09-11 20:47:30,512 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:30,515 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 20:47:30,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:30,714 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.v+cfa-reducer.c[1014,1027] [2024-09-11 20:47:30,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:30,738 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:30,764 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.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-11 20:47:30,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:30,816 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:30,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30 WrapperNode [2024-09-11 20:47:30,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:30,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:30,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:30,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:30,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,924 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 20:47:30,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,941 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:30,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:30,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:30,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:30,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (1/1) ... [2024-09-11 20:47:30,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:30,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:30,991 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 20:47:31,000 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 20:47:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:31,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:31,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:31,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-11 20:47:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-11 20:47:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-11 20:47:31,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:31,128 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:31,130 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:33,350 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:33,351 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:33,385 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:33,386 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:33,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:33 BoogieIcfgContainer [2024-09-11 20:47:33,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:33,387 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:33,387 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:33,388 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:33,388 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 08:47:28" (1/4) ... [2024-09-11 20:47:33,389 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44046ac7 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 20:47:33,389 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:30" (2/4) ... [2024-09-11 20:47:33,389 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44046ac7 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 20:47:33,389 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:30" (3/4) ... [2024-09-11 20:47:33,390 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44046ac7 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 20:47:33,390 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:33" (4/4) ... [2024-09-11 20:47:33,391 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-11 20:47:33,394 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:33,395 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:47:33,396 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-11 20:47:33,396 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:33,446 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:47:33,447 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:33,448 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:33,448 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:33,449 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:33,451 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:33,486 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:33,487 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:33,488 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:33,488 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:33,488 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:33,489 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:33,489 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 20:47:33,493 INFO L158 Benchmark]: Toolchain (without parser) took 3007.24ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 39.6MB in the beginning and 43.9MB in the end (delta: -4.3MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,494 INFO L158 Benchmark]: Witness Parser took 0.98ms. Allocated memory is still 62.9MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:33,495 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:33,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.83ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 25.9MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,497 INFO L158 Benchmark]: Boogie Preprocessor took 139.25ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 25.9MB in the beginning and 66.6MB in the end (delta: -40.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,498 INFO L158 Benchmark]: RCFGBuilder took 2428.61ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 51.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,499 INFO L158 Benchmark]: Referee took 104.75ms. Allocated memory is still 88.1MB. Free memory was 51.1MB in the beginning and 43.9MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:33,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.98ms. Allocated memory is still 62.9MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.83ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 25.9MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.25ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 25.9MB in the beginning and 66.6MB in the end (delta: -40.7MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2428.61ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 51.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 104.75ms. Allocated memory is still 88.1MB. Free memory was 51.1MB in the beginning and 43.9MB in the end (delta: 7.1MB). 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 20:47:33,542 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