./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-de32597-m [2024-09-17 19:39:15,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:39:15,807 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-17 19:39:15,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:39:15,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:39:15,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:39:15,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:39:15,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:39:15,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:39:15,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:39:15,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:39:15,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:39:15,841 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:39:15,842 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:39:15,843 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:39:15,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:39:15,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:39:15,844 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:39:15,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-17 19:39:15,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:39:15,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:39:15,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:39:15,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:39:15,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:39:15,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:39:15,847 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:39:15,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:39:15,847 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:39:15,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:39:15,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:39:15,848 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-17 19:39:15,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:39:15,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:39:15,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:39:15,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:39:15,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:39:15,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:39:15,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-17 19:39:15,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-17 19:39:15,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:39:15,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:39:15,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:39:15,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:39:15,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-17 19:39:16,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:39:16,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:39:16,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:39:16,109 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:39:16,109 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:39:16,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-17 19:39:17,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:39:17,665 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:39:17,666 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-17 19:39:17,672 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/6ec701cac/c43cac56504c498b961ea6e94c851492/FLAGc0121506d [2024-09-17 19:39:17,684 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/6ec701cac/c43cac56504c498b961ea6e94c851492 [2024-09-17 19:39:17,686 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-17 19:39:17,687 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-17 19:39:17,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-17 19:39:17,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:39:17,740 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-17 19:39:17,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:39:17,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:39:17,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:39:17,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:39:17" (1/2) ... [2024-09-17 19:39:17,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56cf1d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:17, skipping insertion in model container [2024-09-17 19:39:17,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:39:17" (1/2) ... [2024-09-17 19:39:17,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@114cfd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:17, skipping insertion in model container [2024-09-17 19:39:17,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:17" (2/2) ... [2024-09-17 19:39:17,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56cf1d3e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:39:17, skipping insertion in model container [2024-09-17 19:39:17,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:17" (2/2) ... [2024-09-17 19:39:17,762 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-17 19:39:17,763 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-17 19:39:17,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:39:17,954 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-17 19:39:17,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:39:17,972 INFO L200 MainTranslator]: Completed pre-run [2024-09-17 19:39:17,994 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-17 19:39:18,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:39:18,040 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:39:18,041 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:39:18 WrapperNode [2024-09-17 19:39:18,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:39:18,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:39:18,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:39:18,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:39:18,055 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,056 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,083 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,114 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]. [2024-09-17 19:39:18,116 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,117 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,121 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,123 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,124 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,124 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:39:18,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:39:18,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:39:18,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:39:18,128 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 17.09 07:39:18" (1/1) ... [2024-09-17 19:39:18,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:39:18,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-17 19:39:18,159 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) [2024-09-17 19:39:18,161 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 [2024-09-17 19:39:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:39:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:39:18,208 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-17 19:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-17 19:39:18,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:39:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-17 19:39:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-17 19:39:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-17 19:39:18,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-17 19:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-17 19:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:39:18,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-17 19:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-17 19:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-17 19:39:18,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-17 19:39:18,284 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:39:18,286 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:39:18,417 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:39:18,441 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:39:18,442 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-17 19:39:18,442 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:39:18 BoogieIcfgContainer [2024-09-17 19:39:18,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:39:18,443 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-17 19:39:18,443 INFO L270 PluginConnector]: Initializing Referee... [2024-09-17 19:39:18,444 INFO L274 PluginConnector]: Referee initialized [2024-09-17 19:39:18,444 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 17.09 07:39:17" (1/4) ... [2024-09-17 19:39:18,445 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@49e14c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 17.09 07:39:18, skipping insertion in model container [2024-09-17 19:39:18,445 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:17" (2/4) ... [2024-09-17 19:39:18,445 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@49e14c9e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:39:18, skipping insertion in model container [2024-09-17 19:39:18,445 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 17.09 07:39:18" (3/4) ... [2024-09-17 19:39:18,445 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@49e14c9e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:39:18, skipping insertion in model container [2024-09-17 19:39:18,446 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:39:18" (4/4) ... [2024-09-17 19:39:18,447 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-17 19:39:18,451 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-17 19:39:18,453 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-17 19:39:18,453 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-17 19:39:18,453 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-17 19:39:18,496 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-17 19:39:18,497 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:18,498 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:18,498 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:18,501 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:18,503 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:18,547 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-17 19:39:18,548 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:18,549 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:18,549 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:18,550 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:18,551 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-17 19:39:18,551 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-17 19:39:18,557 INFO L158 Benchmark]: Toolchain (without parser) took 817.21ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 116.8MB in the end (delta: -21.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:18,558 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:18,558 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:18,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.10ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 81.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-17 19:39:18,559 INFO L158 Benchmark]: Boogie Preprocessor took 84.17ms. Allocated memory is still 167.8MB. Free memory was 81.4MB in the beginning and 139.5MB in the end (delta: -58.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-09-17 19:39:18,559 INFO L158 Benchmark]: RCFGBuilder took 315.92ms. Allocated memory is still 167.8MB. Free memory was 139.0MB in the beginning and 125.8MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:39:18,560 INFO L158 Benchmark]: Referee took 113.10ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 116.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-17 19:39:18,562 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 167.8MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 167.8MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.10ms. Allocated memory is still 167.8MB. Free memory was 95.1MB in the beginning and 81.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.17ms. Allocated memory is still 167.8MB. Free memory was 81.4MB in the beginning and 139.5MB in the end (delta: -58.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 315.92ms. Allocated memory is still 167.8MB. Free memory was 139.0MB in the beginning and 125.8MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 113.10ms. Allocated memory is still 167.8MB. Free memory was 125.8MB in the beginning and 116.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-17 19:39:18,588 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-de32597-m [2024-09-17 19:39:20,878 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:39:20,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-17 19:39:20,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:39:20,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:39:20,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:39:20,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:39:20,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:39:20,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:39:20,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:39:20,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:39:20,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:39:20,999 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:39:20,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:39:20,999 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:39:20,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:39:21,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:39:21,000 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:39:21,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:39:21,001 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:39:21,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:39:21,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:39:21,005 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:39:21,005 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-17 19:39:21,005 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-17 19:39:21,005 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:39:21,006 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-17 19:39:21,006 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:39:21,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:39:21,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:39:21,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:39:21,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:39:21,007 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-17 19:39:21,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:39:21,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:39:21,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:39:21,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:39:21,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:39:21,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:39:21,012 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-17 19:39:21,012 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-17 19:39:21,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:39:21,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:39:21,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:39:21,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:39:21,014 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-17 19:39:21,014 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-17 19:39:21,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:39:21,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:39:21,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:39:21,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:39:21,330 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:39:21,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-17 19:39:22,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:39:23,072 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:39:23,073 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-17 19:39:23,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/de4c6bf0a/8e3c85cb96f24e9f9df544a818421e76/FLAG7591b75d2 [2024-09-17 19:39:23,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/de4c6bf0a/8e3c85cb96f24e9f9df544a818421e76 [2024-09-17 19:39:23,433 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-17 19:39:23,434 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-17 19:39:23,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-17 19:39:23,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:39:23,487 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-17 19:39:23,489 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:39:23,489 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:39:23,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:39:23,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:39:23" (1/2) ... [2024-09-17 19:39:23,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630d6932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:23, skipping insertion in model container [2024-09-17 19:39:23,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:39:23" (1/2) ... [2024-09-17 19:39:23,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d01f701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:23, skipping insertion in model container [2024-09-17 19:39:23,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:23" (2/2) ... [2024-09-17 19:39:23,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630d6932 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:39:23, skipping insertion in model container [2024-09-17 19:39:23,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:23" (2/2) ... [2024-09-17 19:39:23,511 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-17 19:39:23,512 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-17 19:39:23,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:39:23,706 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-17 19:39:23,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:39:23,735 INFO L200 MainTranslator]: Completed pre-run [2024-09-17 19:39:23,757 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-17 19:39:23,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:39:23,805 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:39:23,806 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:39:23 WrapperNode [2024-09-17 19:39:23,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:39:23,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:39:23,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:39:23,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:39:23,820 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,820 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,847 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,859 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]. [2024-09-17 19:39:23,860 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,860 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,870 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,878 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,890 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,891 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:39:23,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:39:23,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:39:23,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:39:23,907 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 17.09 07:39:23" (1/1) ... [2024-09-17 19:39:23,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:39:23,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-17 19:39:23,932 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) [2024-09-17 19:39:23,937 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 [2024-09-17 19:39:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:39:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:39:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-17 19:39:23,980 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-17 19:39:23,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:39:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-17 19:39:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-17 19:39:23,981 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-17 19:39:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:39:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-17 19:39:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:39:23,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-17 19:39:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:39:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:39:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-17 19:39:23,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:39:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-17 19:39:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-17 19:39:23,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-17 19:39:24,065 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:39:24,068 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:39:25,945 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:39:25,999 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:39:26,003 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-17 19:39:26,004 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:39:26 BoogieIcfgContainer [2024-09-17 19:39:26,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:39:26,004 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-17 19:39:26,004 INFO L270 PluginConnector]: Initializing Referee... [2024-09-17 19:39:26,005 INFO L274 PluginConnector]: Referee initialized [2024-09-17 19:39:26,005 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 17.09 07:39:23" (1/4) ... [2024-09-17 19:39:26,006 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6eedf27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 17.09 07:39:26, skipping insertion in model container [2024-09-17 19:39:26,006 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:23" (2/4) ... [2024-09-17 19:39:26,006 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6eedf27d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:39:26, skipping insertion in model container [2024-09-17 19:39:26,006 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 17.09 07:39:23" (3/4) ... [2024-09-17 19:39:26,006 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6eedf27d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:39:26, skipping insertion in model container [2024-09-17 19:39:26,007 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:39:26" (4/4) ... [2024-09-17 19:39:26,008 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-17 19:39:26,012 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-17 19:39:26,013 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-17 19:39:26,013 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-17 19:39:26,013 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-17 19:39:26,065 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-17 19:39:26,066 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:26,067 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:26,067 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:26,068 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:26,070 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:26,148 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-17 19:39:26,149 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:26,149 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:26,150 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:26,150 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:26,151 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-17 19:39:26,151 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-17 19:39:26,157 INFO L158 Benchmark]: Toolchain (without parser) took 2667.46ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 45.3MB in the beginning and 40.2MB in the end (delta: 5.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-09-17 19:39:26,158 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 46.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:26,158 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 69.2MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:26,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.86ms. Allocated memory is still 69.2MB. Free memory was 45.0MB in the beginning and 30.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:39:26,159 INFO L158 Benchmark]: Boogie Preprocessor took 93.34ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 30.6MB in the beginning and 67.1MB in the end (delta: -36.5MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-09-17 19:39:26,160 INFO L158 Benchmark]: RCFGBuilder took 2102.29ms. Allocated memory is still 88.1MB. Free memory was 67.1MB in the beginning and 52.0MB in the end (delta: 15.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-17 19:39:26,161 INFO L158 Benchmark]: Referee took 149.32ms. Allocated memory is still 88.1MB. Free memory was 51.9MB in the beginning and 40.2MB in the end (delta: 11.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:39:26,165 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 0.36ms. Allocated memory is still 69.2MB. Free memory was 46.1MB in the beginning and 46.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.20ms. Allocated memory is still 69.2MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.86ms. Allocated memory is still 69.2MB. Free memory was 45.0MB in the beginning and 30.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.34ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 30.6MB in the beginning and 67.1MB in the end (delta: -36.5MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2102.29ms. Allocated memory is still 88.1MB. Free memory was 67.1MB in the beginning and 52.0MB in the end (delta: 15.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 149.32ms. Allocated memory is still 88.1MB. Free memory was 51.9MB in the beginning and 40.2MB in the end (delta: 11.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-17 19:39:26,199 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