This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:09:25,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:09:25,387 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:09:25,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:09:25,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:09:25,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:09:25,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:09:25,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:09:25,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:09:25,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:09:25,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:09:25,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:09:25,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:09:25,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:09:25,429 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:09:25,430 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:09:25,430 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:09:25,430 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:09:25,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:09:25,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:09:25,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:09:25,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:09:25,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:09:25,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:09:25,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:09:25,433 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:09:25,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:09:25,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:09:25,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:09:25,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:09:25,434 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:09:25,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:09:25,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:09:25,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:25,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:09:25,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:09:25,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:09:25,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:09:25,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:09:25,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:09:25,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:09:25,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:09:25,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:09:25,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:09:25,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:09:25,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:09:25,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:09:25,736 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:09:25,737 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:09:25,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 20:09:27,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:09:27,397 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:09:27,401 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 20:09:27,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9509e0117/d4aa1f6420184e48b0e25ee37d232e3a/FLAG0bd19b077 [2024-09-20 20:09:27,769 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9509e0117/d4aa1f6420184e48b0e25ee37d232e3a [2024-09-20 20:09:27,772 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:09:27,772 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:09:27,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 20:09:27,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:09:27,818 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:09:27,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:27,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:09:27,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:09:27,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:27" (1/2) ... [2024-09-20 20:09:27,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd72685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:27, skipping insertion in model container [2024-09-20 20:09:27,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:27" (1/2) ... [2024-09-20 20:09:27,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78dc32b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:27, skipping insertion in model container [2024-09-20 20:09:27,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:27" (2/2) ... [2024-09-20 20:09:27,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd72685 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:27, skipping insertion in model container [2024-09-20 20:09:27,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:27" (2/2) ... [2024-09-20 20:09:27,838 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:09:27,840 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((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))) [2024-09-20 20:09:27,865 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:09:28,048 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.v+cfa-reducer.c[1014,1027] [2024-09-20 20:09:28,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:28,074 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 20:09:28,093 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.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-20 20:09:28,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:28,139 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:09:28,140 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:28 WrapperNode [2024-09-20 20:09:28,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:28,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:09:28,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:09:28,141 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:09:28,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,152 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,157 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,167 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]. [2024-09-20 20:09:28,167 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,168 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,171 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,172 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,173 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,173 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:09:28,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:09:28,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:09:28,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:09:28,176 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 20.09 08:09:28" (1/1) ... [2024-09-20 20:09:28,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:28,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:09:28,207 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) [2024-09-20 20:09:28,210 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 [2024-09-20 20:09:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:09:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:09:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:09:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:09:28,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:09:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:09:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:09:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:09:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:09:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:09:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:09:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 20:09:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:09:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:09:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 20:09:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:09:28,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 20:09:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 20:09:28,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:09:28,339 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:09:28,341 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:09:28,446 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:09:28,479 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:09:28,479 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 20:09:28,479 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:28 BoogieIcfgContainer [2024-09-20 20:09:28,479 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:09:28,480 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:09:28,480 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:09:28,481 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:09:28,484 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:09:27" (1/4) ... [2024-09-20 20:09:28,484 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5333b202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:28, skipping insertion in model container [2024-09-20 20:09:28,485 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:27" (2/4) ... [2024-09-20 20:09:28,485 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5333b202 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:28, skipping insertion in model container [2024-09-20 20:09:28,485 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 20.09 08:09:28" (3/4) ... [2024-09-20 20:09:28,485 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5333b202 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:28, skipping insertion in model container [2024-09-20 20:09:28,485 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:28" (4/4) ... [2024-09-20 20:09:28,486 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-20 20:09:28,492 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 20:09:28,493 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 20:09:28,493 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 20:09:28,493 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 20:09:28,530 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 20:09:28,531 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:28,532 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:28,532 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:28,533 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:28,534 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:28,557 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:09:28,558 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:28,558 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:28,559 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:28,559 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:28,559 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 20:09:28,560 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) [2024-09-20 20:09:28,564 INFO L158 Benchmark]: Toolchain (without parser) took 745.38ms. Allocated memory is still 148.9MB. Free memory was 69.9MB in the beginning and 105.1MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:28,565 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:28,565 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:28,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.81ms. Allocated memory is still 148.9MB. Free memory was 69.6MB in the beginning and 111.6MB in the end (delta: -42.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-09-20 20:09:28,566 INFO L158 Benchmark]: Boogie Preprocessor took 33.52ms. Allocated memory is still 148.9MB. Free memory was 111.6MB in the beginning and 109.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:09:28,567 INFO L158 Benchmark]: RCFGBuilder took 304.58ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 110.5MB in the end (delta: -712.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 20:09:28,567 INFO L158 Benchmark]: Referee took 82.84ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 105.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 20:09:28,570 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 118.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.81ms. Allocated memory is still 148.9MB. Free memory was 69.6MB in the beginning and 111.6MB in the end (delta: -42.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.52ms. Allocated memory is still 148.9MB. Free memory was 111.6MB in the beginning and 109.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.58ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 110.5MB in the end (delta: -712.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Referee took 82.84ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 105.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:09:28,595 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:09:30,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:09:30,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 20:09:30,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:09:30,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:09:30,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:09:30,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:09:30,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:09:30,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:09:30,831 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:09:30,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:09:30,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:09:30,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:09:30,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:09:30,834 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:09:30,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:09:30,835 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:09:30,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:09:30,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:09:30,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:09:30,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:09:30,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:09:30,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:09:30,839 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 20:09:30,839 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 20:09:30,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:09:30,840 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 20:09:30,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:09:30,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:09:30,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:09:30,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:09:30,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:09:30,841 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:09:30,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:09:30,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:09:30,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:30,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:09:30,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:09:30,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:09:30,843 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 20:09:30,843 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 20:09:30,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:09:30,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:09:30,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:09:30,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:09:30,844 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 20:09:30,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:09:31,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:09:31,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:09:31,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:09:31,195 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:09:31,196 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:09:31,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 20:09:32,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:09:32,844 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:09:32,844 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-20 20:09:32,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/c574ecac3/95361086fbe04beaa40f43b0a576a282/FLAG87f63de9f [2024-09-20 20:09:32,872 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/c574ecac3/95361086fbe04beaa40f43b0a576a282 [2024-09-20 20:09:32,875 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:09:32,876 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:09:32,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 20:09:32,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:09:32,937 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:09:32,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:32,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:09:32,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:09:32,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:32" (1/2) ... [2024-09-20 20:09:32,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330ed0fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:32" (1/2) ... [2024-09-20 20:09:32,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a905af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:32" (2/2) ... [2024-09-20 20:09:32,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330ed0fa and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:32" (2/2) ... [2024-09-20 20:09:32,959 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:09:32,962 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((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))) [2024-09-20 20:09:32,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:09:33,147 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.v+cfa-reducer.c[1014,1027] [2024-09-20 20:09:33,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:33,174 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 20:09:33,192 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.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-20 20:09:33,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:33,241 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:09:33,241 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:33 WrapperNode [2024-09-20 20:09:33,242 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:33,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:09:33,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:09:33,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:09:33,255 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,255 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,263 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,280 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]. [2024-09-20 20:09:33,281 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,281 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,291 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,293 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,295 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,297 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:09:33,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:09:33,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:09:33,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:09:33,302 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 20.09 08:09:33" (1/1) ... [2024-09-20 20:09:33,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:33,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:09:33,334 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) [2024-09-20 20:09:33,337 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 [2024-09-20 20:09:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:09:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:09:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:09:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:09:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:09:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:09:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:09:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:09:33,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:09:33,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 20:09:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 20:09:33,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:09:33,474 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:09:33,476 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:09:37,762 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:09:37,806 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:09:37,806 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 20:09:37,807 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:37 BoogieIcfgContainer [2024-09-20 20:09:37,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:09:37,811 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:09:37,811 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:09:37,812 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:09:37,813 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:09:32" (1/4) ... [2024-09-20 20:09:37,813 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2356b3fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:37, skipping insertion in model container [2024-09-20 20:09:37,815 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:32" (2/4) ... [2024-09-20 20:09:37,815 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2356b3fc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:37, skipping insertion in model container [2024-09-20 20:09:37,815 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 20.09 08:09:33" (3/4) ... [2024-09-20 20:09:37,815 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2356b3fc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:37, skipping insertion in model container [2024-09-20 20:09:37,816 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:37" (4/4) ... [2024-09-20 20:09:37,817 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-20 20:09:37,821 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 20:09:37,822 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 20:09:37,822 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 20:09:37,823 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 20:09:37,863 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 20:09:37,864 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:37,864 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:37,865 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:37,866 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:37,871 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:37,939 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:09:37,940 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:37,941 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:37,941 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:37,941 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:37,942 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 20:09:37,943 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) [2024-09-20 20:09:37,949 INFO L158 Benchmark]: Toolchain (without parser) took 5011.60ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 43.5MB in the beginning and 53.7MB in the end (delta: -10.2MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-09-20 20:09:37,950 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 46.1MB. Free memory was 27.2MB in the beginning and 27.2MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:37,950 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:37,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.46ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 29.8MB in the end (delta: 13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 20:09:37,952 INFO L158 Benchmark]: Boogie Preprocessor took 57.88ms. Allocated memory is still 62.9MB. Free memory was 29.8MB in the beginning and 27.4MB in the end (delta: 2.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 20:09:37,952 INFO L158 Benchmark]: RCFGBuilder took 4508.99ms. Allocated memory is still 62.9MB. Free memory was 27.4MB in the beginning and 30.9MB in the end (delta: -3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-20 20:09:37,953 INFO L158 Benchmark]: Referee took 136.73ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 53.7MB in the end (delta: -22.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-09-20 20:09:37,956 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 0.24ms. Allocated memory is still 46.1MB. Free memory was 27.2MB in the beginning and 27.2MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.46ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 29.8MB in the end (delta: 13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.88ms. Allocated memory is still 62.9MB. Free memory was 29.8MB in the beginning and 27.4MB in the end (delta: 2.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4508.99ms. Allocated memory is still 62.9MB. Free memory was 27.4MB in the beginning and 30.9MB in the end (delta: -3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Referee took 136.73ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 30.9MB in the beginning and 53.7MB in the end (delta: -22.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:09:37,999 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...