This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:07:56,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:56,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:07:56,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:56,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:56,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:56,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:56,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:56,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:56,394 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:56,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:56,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:56,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:56,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:56,396 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:56,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:56,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:56,397 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:56,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:07:56,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:56,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:56,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:56,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:56,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:56,404 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:56,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:56,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:56,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:56,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:56,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:56,405 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:56,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:56,406 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:56,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:56,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:56,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:56,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:56,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:07:56,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:07:56,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:56,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:56,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:56,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:56,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:56,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:56,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:56,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:56,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:56,647 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:56,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 10:07:58,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:58,240 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:58,243 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 10:07:58,249 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/468baadad/abd210de986b477691cc9ce01b6f832e/FLAG73cc1e8e2 [2024-09-13 10:07:58,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/468baadad/abd210de986b477691cc9ce01b6f832e [2024-09-13 10:07:58,262 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:58,263 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:58,264 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:07:58,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:58,300 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:58,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:58,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:58,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:58,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:58" (1/2) ... [2024-09-13 10:07:58,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97257ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:58" (1/2) ... [2024-09-13 10:07:58,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40908fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:58" (2/2) ... [2024-09-13 10:07:58,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97257ac and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:58" (2/2) ... [2024-09-13 10:07:58,315 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:58,315 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-13 10:07:58,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:58,458 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2024-09-13 10:07:58,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:58,475 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:58,487 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-13 10:07:58,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:58,520 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:58,521 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:58 WrapperNode [2024-09-13 10:07:58,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:58,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:58,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:58,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:58,533 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,533 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,539 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,557 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]. [2024-09-13 10:07:58,558 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,558 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,561 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,567 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,568 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,568 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:58,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:58,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:58,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:58,574 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:58,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:58,643 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) [2024-09-13 10:07:58,646 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 [2024-09-13 10:07:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 10:07:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 10:07:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:58,745 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:58,747 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:58,867 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:58,900 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:58,900 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:58,900 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:58 BoogieIcfgContainer [2024-09-13 10:07:58,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:58,901 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:58,901 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:58,902 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:58,902 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:58" (1/4) ... [2024-09-13 10:07:58,902 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66fc84b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,902 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:58" (2/4) ... [2024-09-13 10:07:58,903 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66fc84b8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,903 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 13.09 10:07:58" (3/4) ... [2024-09-13 10:07:58,904 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66fc84b8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,904 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:58" (4/4) ... [2024-09-13 10:07:58,905 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-13 10:07:58,907 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:58,908 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:58,908 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:07:58,908 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:58,938 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:58,942 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:58,942 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:58,943 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:58,944 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:58,945 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:58,964 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:58,965 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:58,965 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:58,965 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:58,966 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:58,966 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:58,967 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) [2024-09-13 10:07:58,970 INFO L158 Benchmark]: Toolchain (without parser) took 669.12ms. Allocated memory is still 176.2MB. Free memory was 103.7MB in the beginning and 130.1MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:58,970 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 176.2MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:58,970 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:58,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.49ms. Allocated memory is still 176.2MB. Free memory was 103.5MB in the beginning and 90.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,971 INFO L158 Benchmark]: Boogie Preprocessor took 48.79ms. Allocated memory is still 176.2MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,972 INFO L158 Benchmark]: RCFGBuilder took 328.63ms. Allocated memory is still 176.2MB. Free memory was 88.2MB in the beginning and 136.1MB in the end (delta: -47.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,972 INFO L158 Benchmark]: Referee took 67.62ms. Allocated memory is still 176.2MB. Free memory was 136.1MB in the beginning and 130.1MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,974 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 0.16ms. Allocated memory is still 176.2MB. Free memory is still 132.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.49ms. Allocated memory is still 176.2MB. Free memory was 103.5MB in the beginning and 90.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.79ms. Allocated memory is still 176.2MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.63ms. Allocated memory is still 176.2MB. Free memory was 88.2MB in the beginning and 136.1MB in the end (delta: -47.9MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Referee took 67.62ms. Allocated memory is still 176.2MB. Free memory was 136.1MB in the beginning and 130.1MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:58,999 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... ### Bit-precise run ### This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:08:01,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:08:01,466 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:08:01,473 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:08:01,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:08:01,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:08:01,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:08:01,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:08:01,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:08:01,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:08:01,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:08:01,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:08:01,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:08:01,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:08:01,509 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:08:01,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:08:01,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:08:01,510 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:08:01,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:08:01,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:08:01,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:08:01,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:08:01,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:08:01,512 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:08:01,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:08:01,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:08:01,512 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:08:01,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:08:01,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:08:01,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:01,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:08:01,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:08:01,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:08:01,513 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:08:01,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:08:01,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:08:01,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:08:01,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:08:01,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:08:01,516 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:08:01,516 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:08:01,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:08:01,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:08:01,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:08:01,812 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:08:01,813 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:08:01,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 10:08:03,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:08:03,450 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:08:03,450 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 10:08:03,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/72e6810a9/f454af7772c04292910b509d5b9ed05c/FLAG801446709 [2024-09-13 10:08:03,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/72e6810a9/f454af7772c04292910b509d5b9ed05c [2024-09-13 10:08:03,472 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:08:03,473 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:08:03,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:08:03,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:08:03,520 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:08:03,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:08:03,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:08:03,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:08:03,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:08:03" (1/2) ... [2024-09-13 10:08:03,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162e541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:08:03, skipping insertion in model container [2024-09-13 10:08:03,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:08:03" (1/2) ... [2024-09-13 10:08:03,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6bdb57ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:08:03, skipping insertion in model container [2024-09-13 10:08:03,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:03" (2/2) ... [2024-09-13 10:08:03,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162e541 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:03, skipping insertion in model container [2024-09-13 10:08:03,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:03" (2/2) ... [2024-09-13 10:08:03,540 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:08:03,540 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-13 10:08:03,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:08:03,717 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2024-09-13 10:08:03,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:08:03,739 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:08:03,753 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-13 10:08:03,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:08:03,796 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:08:03,796 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:03 WrapperNode [2024-09-13 10:08:03,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:08:03,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:08:03,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:08:03,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:08:03,808 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,809 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,815 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,829 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]. [2024-09-13 10:08:03,830 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,830 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,838 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,840 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,842 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,845 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:08:03,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:08:03,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:08:03,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:08:03,848 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:03,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:08:03,876 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) [2024-09-13 10:08:03,880 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 [2024-09-13 10:08:03,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:08:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:08:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:08:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:08:03,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:08:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:08:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:08:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:08:03,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 10:08:03,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:08:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 10:08:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 10:08:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:08:04,015 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:08:04,016 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:08:08,200 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:08:08,225 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:08:08,225 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:08:08,225 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:08:08 BoogieIcfgContainer [2024-09-13 10:08:08,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:08:08,226 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:08:08,226 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:08:08,227 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:08:08,227 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:08:03" (1/4) ... [2024-09-13 10:08:08,227 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5bc9a5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:08:08, skipping insertion in model container [2024-09-13 10:08:08,227 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:03" (2/4) ... [2024-09-13 10:08:08,227 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5bc9a5d8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:08:08, skipping insertion in model container [2024-09-13 10:08:08,227 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 13.09 10:08:03" (3/4) ... [2024-09-13 10:08:08,228 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5bc9a5d8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:08:08, skipping insertion in model container [2024-09-13 10:08:08,228 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:08:08" (4/4) ... [2024-09-13 10:08:08,229 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-13 10:08:08,231 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:08:08,232 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:08:08,232 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:08:08,232 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:08:08,264 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:08:08,265 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:08:08,266 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:08:08,266 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:08:08,268 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:08:08,269 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:08:08,288 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:08:08,289 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:08:08,289 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:08:08,290 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:08:08,290 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:08:08,290 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:08:08,291 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) [2024-09-13 10:08:08,294 INFO L158 Benchmark]: Toolchain (without parser) took 4773.96ms. Allocated memory is still 73.4MB. Free memory was 39.0MB in the beginning and 41.0MB in the end (delta: -2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:08,294 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:08,295 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:08,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.16ms. Allocated memory is still 73.4MB. Free memory was 38.8MB in the beginning and 43.0MB in the end (delta: -4.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-09-13 10:08:08,295 INFO L158 Benchmark]: Boogie Preprocessor took 49.26ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 40.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:08:08,296 INFO L158 Benchmark]: RCFGBuilder took 4377.94ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 48.1MB in the end (delta: -7.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:08:08,296 INFO L158 Benchmark]: Referee took 67.12ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 41.0MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-13 10:08:08,298 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 0.21ms. Allocated memory is still 54.5MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 73.4MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.16ms. Allocated memory is still 73.4MB. Free memory was 38.8MB in the beginning and 43.0MB in the end (delta: -4.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.26ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 40.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4377.94ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 48.1MB in the end (delta: -7.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 67.12ms. Allocated memory is still 73.4MB. Free memory was 48.1MB in the beginning and 41.0MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:08:08,335 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...