./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 04d6fb36 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.p+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-04d6fb3-m [2024-09-15 20:05:52,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:05:52,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-15 20:05:52,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:05:52,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:05:52,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:05:52,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:05:52,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:05:52,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:05:52,248 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:05:52,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:05:52,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:05:52,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:05:52,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:05:52,249 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:05:52,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:05:52,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:05:52,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:05:52,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:05:52,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:05:52,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:05:52,252 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:05:52,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:05:52,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:05:52,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:05:52,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:05:52,253 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:05:52,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:05:52,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:05:52,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:05:52,254 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-15 20:05:52,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:05:52,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:05:52,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:52,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:05:52,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:05:52,255 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:05:52,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:05:52,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:05:52,256 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:05:52,256 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:05:52,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:05:52,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:05:52,257 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:05:52,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:05:52,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:05:52,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:05:52,459 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:05:52,459 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:05:52,460 INFO L431 ainManager$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 [2024-09-15 20:05:52,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:05:52,513 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:05:52,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-15 20:05:53,930 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:05:54,143 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:05:54,147 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-15 20:05:54,155 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/81403a467/6c1d3c56804c4dbcbe1d41cb43ce6d7f/FLAG83a9da563 [2024-09-15 20:05:54,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/81403a467/6c1d3c56804c4dbcbe1d41cb43ce6d7f [2024-09-15 20:05:54,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:05:54,173 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-15 20:05:54,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:54,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:05:54,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:05:54,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:52" (1/2) ... [2024-09-15 20:05:54,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6126f3a3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:54, skipping insertion in model container [2024-09-15 20:05:54,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:52" (1/2) ... [2024-09-15 20:05:54,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16295b4d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:54, skipping insertion in model container [2024-09-15 20:05:54,191 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:54" (2/2) ... [2024-09-15 20:05:54,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6126f3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54, skipping insertion in model container [2024-09-15 20:05:54,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:54" (2/2) ... [2024-09-15 20:05:54,200 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:05:54,201 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))) [2024-09-15 20:05:54,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:05:54,411 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] [2024-09-15 20:05:54,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:05:54,442 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:05:54,481 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 [2024-09-15 20:05:54,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:05:54,533 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:05:54,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54 WrapperNode [2024-09-15 20:05:54,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:54,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:05:54,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:05:54,542 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:05:54,560 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,574 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,595 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-15 20:05:54,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,613 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:05:54,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:05:54,617 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:05:54,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:05:54,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (1/1) ... [2024-09-15 20:05:54,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:54,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-15 20:05:54,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-15 20:05:54,677 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-15 20:05:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 20:05:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:05:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-15 20:05:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-15 20:05:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:05:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-15 20:05:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 20:05:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 20:05:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 20:05:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:05:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-15 20:05:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-15 20:05:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:05:54,817 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:05:54,819 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:05:54,974 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:05:55,003 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:05:55,003 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:05:55,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:05:55 BoogieIcfgContainer [2024-09-15 20:05:55,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:05:55,004 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-15 20:05:55,004 INFO L270 PluginConnector]: Initializing Referee... [2024-09-15 20:05:55,005 INFO L274 PluginConnector]: Referee initialized [2024-09-15 20:05:55,005 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:52" (1/4) ... [2024-09-15 20:05:55,005 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@68f0ad17 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.09 08:05:55, skipping insertion in model container [2024-09-15 20:05:55,005 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.09 08:05:54" (2/4) ... [2024-09-15 20:05:55,005 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@68f0ad17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:05:55, skipping insertion in model container [2024-09-15 20:05:55,005 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:54" (3/4) ... [2024-09-15 20:05:55,006 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@68f0ad17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:05:55, skipping insertion in model container [2024-09-15 20:05:55,006 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:05:55" (4/4) ... [2024-09-15 20:05:55,007 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-15 20:05:55,009 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-15 20:05:55,011 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-15 20:05:55,011 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-15 20:05:55,011 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-15 20:05:55,043 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-15 20:05:55,044 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:55,044 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:55,045 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:55,046 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:55,047 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:55,099 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-15 20:05:55,100 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:55,100 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:55,101 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:55,101 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:55,101 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-15 20:05:55,102 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-15 20:05:55,109 INFO L158 Benchmark]: Toolchain (without parser) took 935.13ms. Allocated memory is still 209.7MB. Free memory was 138.2MB in the beginning and 160.4MB in the end (delta: -22.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:55,109 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:55,109 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory was 184.7MB in the beginning and 184.5MB in the end (delta: 211.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:55,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.35ms. Allocated memory is still 209.7MB. Free memory was 138.0MB in the beginning and 124.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,117 INFO L158 Benchmark]: Boogie Preprocessor took 76.10ms. Allocated memory is still 209.7MB. Free memory was 124.4MB in the beginning and 122.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,118 INFO L158 Benchmark]: RCFGBuilder took 388.26ms. Allocated memory is still 209.7MB. Free memory was 122.0MB in the beginning and 169.4MB in the end (delta: -47.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,118 INFO L158 Benchmark]: Referee took 103.57ms. Allocated memory is still 209.7MB. Free memory was 169.4MB in the beginning and 160.4MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-15 20:05:55,120 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 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 209.7MB. Free memory was 184.7MB in the beginning and 184.5MB in the end (delta: 211.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.35ms. Allocated memory is still 209.7MB. Free memory was 138.0MB in the beginning and 124.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.10ms. Allocated memory is still 209.7MB. Free memory was 124.4MB in the beginning and 122.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.26ms. Allocated memory is still 209.7MB. Free memory was 122.0MB in the beginning and 169.4MB in the end (delta: -47.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Referee took 103.57ms. Allocated memory is still 209.7MB. Free memory was 169.4MB in the beginning and 160.4MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-15 20:05:55,145 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-04d6fb3-m [2024-09-15 20:05:57,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:05:57,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-15 20:05:57,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:05:57,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:05:57,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:05:57,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:05:57,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:05:57,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:05:57,693 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:05:57,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:05:57,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:05:57,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:05:57,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:05:57,695 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:05:57,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:05:57,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:05:57,700 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:05:57,700 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:05:57,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:05:57,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:05:57,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:05:57,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:05:57,701 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-15 20:05:57,702 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-15 20:05:57,702 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:05:57,702 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-15 20:05:57,702 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:05:57,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:05:57,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:05:57,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:05:57,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:05:57,703 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-15 20:05:57,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:05:57,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:05:57,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:57,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:05:57,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:05:57,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:05:57,705 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-15 20:05:57,707 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-15 20:05:57,707 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:05:57,708 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:05:57,708 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:05:57,708 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:05:57,708 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-15 20:05:57,708 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:05:57,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:05:57,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:05:57,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:05:58,000 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:05:58,000 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:05:58,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-15 20:05:59,519 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:05:59,775 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:05:59,775 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-15 20:05:59,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3f6f5d55e/b5a9a299bb99410b8abccc1fb0e91f56/FLAGa8889621c [2024-09-15 20:05:59,804 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3f6f5d55e/b5a9a299bb99410b8abccc1fb0e91f56 [2024-09-15 20:05:59,806 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:05:59,810 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:05:59,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-15 20:05:59,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:05:59,891 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-15 20:05:59,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:59,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:05:59,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:05:59,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:59" (1/2) ... [2024-09-15 20:05:59,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc52f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:59, skipping insertion in model container [2024-09-15 20:05:59,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:59" (1/2) ... [2024-09-15 20:05:59,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@149d5e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:59, skipping insertion in model container [2024-09-15 20:05:59,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:59" (2/2) ... [2024-09-15 20:05:59,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc52f66 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:59, skipping insertion in model container [2024-09-15 20:05:59,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:59" (2/2) ... [2024-09-15 20:05:59,917 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:05:59,924 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))) [2024-09-15 20:05:59,950 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:06:00,221 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] [2024-09-15 20:06:00,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:06:00,256 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 20:06:00,288 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 [2024-09-15 20:06:00,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:06:00,377 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:06:00,378 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:06:00 WrapperNode [2024-09-15 20:06:00,378 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:06:00,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:06:00,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:06:00,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:06:00,406 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,406 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,424 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,452 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-15 20:06:00,452 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,456 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,468 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,472 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,477 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,478 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:06:00,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:06:00,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:06:00,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:06:00,489 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 15.09 08:06:00" (1/1) ... [2024-09-15 20:06:00,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:06:00,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-15 20:06:00,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-15 20:06:00,542 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-15 20:06:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 20:06:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:06:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-15 20:06:00,576 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-15 20:06:00,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 20:06:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-15 20:06:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-15 20:06:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-15 20:06:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:06:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-15 20:06:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:06:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-15 20:06:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 20:06:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 20:06:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-15 20:06:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:06:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-15 20:06:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-15 20:06:00,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:06:00,643 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:06:00,645 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:06:02,332 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:06:02,354 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:06:02,354 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-15 20:06:02,355 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:06:02 BoogieIcfgContainer [2024-09-15 20:06:02,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:06:02,355 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-15 20:06:02,355 INFO L270 PluginConnector]: Initializing Referee... [2024-09-15 20:06:02,356 INFO L274 PluginConnector]: Referee initialized [2024-09-15 20:06:02,356 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.09 08:05:59" (1/4) ... [2024-09-15 20:06:02,357 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@23e234e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:06:02, skipping insertion in model container [2024-09-15 20:06:02,357 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:59" (2/4) ... [2024-09-15 20:06:02,357 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@23e234e0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.09 08:06:02, skipping insertion in model container [2024-09-15 20:06:02,357 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 15.09 08:06:00" (3/4) ... [2024-09-15 20:06:02,357 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@23e234e0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.09 08:06:02, skipping insertion in model container [2024-09-15 20:06:02,357 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:06:02" (4/4) ... [2024-09-15 20:06:02,358 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-15 20:06:02,361 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-15 20:06:02,361 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-15 20:06:02,361 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-15 20:06:02,362 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-15 20:06:02,404 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-15 20:06:02,405 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:06:02,405 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:06:02,406 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:06:02,406 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:06:02,408 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:06:02,462 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-15 20:06:02,463 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:06:02,463 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:06:02,463 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:06:02,463 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:06:02,464 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-15 20:06:02,464 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-15 20:06:02,468 INFO L158 Benchmark]: Toolchain (without parser) took 2576.43ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 72.9MB in the end (delta: 8.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-09-15 20:06:02,468 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 67.1MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:06:02,468 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:06:02,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.52ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 67.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-15 20:06:02,469 INFO L158 Benchmark]: Boogie Preprocessor took 105.24ms. Allocated memory is still 113.2MB. Free memory was 67.3MB in the beginning and 65.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 20:06:02,469 INFO L158 Benchmark]: RCFGBuilder took 1866.86ms. Allocated memory is still 113.2MB. Free memory was 65.1MB in the beginning and 84.5MB in the end (delta: -19.4MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-09-15 20:06:02,470 INFO L158 Benchmark]: Referee took 111.21ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 72.9MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-15 20:06:02,472 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 0.26ms. Allocated memory is still 67.1MB. Free memory is still 36.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 113.2MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.52ms. Allocated memory is still 113.2MB. Free memory was 81.6MB in the beginning and 67.3MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 105.24ms. Allocated memory is still 113.2MB. Free memory was 67.3MB in the beginning and 65.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1866.86ms. Allocated memory is still 113.2MB. Free memory was 65.1MB in the beginning and 84.5MB in the end (delta: -19.4MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Referee took 111.21ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 72.9MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-15 20:06:02,500 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