This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:47:53,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:53,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 12:47:53,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:53,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:53,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:53,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:53,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:53,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:53,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:53,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:53,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:53,939 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:53,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:53,941 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:53,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:53,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:53,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:53,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:47:53,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:53,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:53,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:53,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:53,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:53,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:53,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:53,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:53,947 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:53,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:53,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:53,948 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:53,948 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:53,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:53,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:53,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:53,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:53,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:53,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:47:53,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:47:53,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:53,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:53,954 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:53,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:53,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:54,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:54,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:54,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:54,265 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:54,266 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:54,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-21 12:47:54,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:54,321 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:54,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-21 12:47:55,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:55,935 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:55,935 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-21 12:47:55,942 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/21724d18b/40496a96c189459dab6189810bd8ff02/FLAGfce3653fb [2024-09-21 12:47:55,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/21724d18b/40496a96c189459dab6189810bd8ff02 [2024-09-21 12:47:55,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:55,954 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:55,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:55,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:55,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:55,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:54" (1/2) ... [2024-09-21 12:47:55,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7081d215 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:55, skipping insertion in model container [2024-09-21 12:47:55,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:54" (1/2) ... [2024-09-21 12:47:55,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15d38969 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:55, skipping insertion in model container [2024-09-21 12:47:55,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:55" (2/2) ... [2024-09-21 12:47:55,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7081d215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:55, skipping insertion in model container [2024-09-21 12:47:55,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:55" (2/2) ... [2024-09-21 12:47:55,974 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:55,976 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-21 12:47:55,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:56,143 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-21 12:47:56,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:56,165 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:56,186 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-21 12:47:56,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:56,239 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:56,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56 WrapperNode [2024-09-21 12:47:56,240 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:56,241 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:56,241 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:56,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:56,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,260 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,282 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]. [2024-09-21 12:47:56,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:56,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:56,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:56,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:56,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:56,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:56,339 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) [2024-09-21 12:47:56,345 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 [2024-09-21 12:47:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:47:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:47:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:47:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:56,491 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:56,494 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:56,609 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:56,636 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:56,636 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:56,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:56 BoogieIcfgContainer [2024-09-21 12:47:56,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:56,638 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:56,638 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:56,639 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:56,639 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:54" (1/4) ... [2024-09-21 12:47:56,639 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@332ada8d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,639 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:55" (2/4) ... [2024-09-21 12:47:56,640 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@332ada8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,640 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56" (3/4) ... [2024-09-21 12:47:56,640 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@332ada8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,640 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:56" (4/4) ... [2024-09-21 12:47:56,642 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-21 12:47:56,645 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:56,646 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-21 12:47:56,646 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-21 12:47:56,646 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:56,691 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-21 12:47:56,693 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:56,693 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:56,694 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:56,695 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:56,696 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:56,747 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-21 12:47:56,748 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:56,748 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:56,748 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:56,749 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:56,750 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:56,751 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) [2024-09-21 12:47:56,758 INFO L158 Benchmark]: Toolchain (without parser) took 802.61ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 108.1MB in the end (delta: 4.7MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,758 INFO L158 Benchmark]: Witness Parser took 0.48ms. Allocated memory is still 96.5MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,759 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.96ms. Allocated memory is still 155.2MB. Free memory was 112.4MB in the beginning and 98.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,760 INFO L158 Benchmark]: Boogie Preprocessor took 60.81ms. Allocated memory is still 155.2MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,760 INFO L158 Benchmark]: RCFGBuilder took 334.55ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 116.8MB in the end (delta: -20.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,761 INFO L158 Benchmark]: Referee took 118.47ms. Allocated memory is still 155.2MB. Free memory was 116.8MB in the beginning and 108.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.48ms. Allocated memory is still 96.5MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 66.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.96ms. Allocated memory is still 155.2MB. Free memory was 112.4MB in the beginning and 98.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.81ms. Allocated memory is still 155.2MB. Free memory was 98.8MB in the beginning and 96.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.55ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 116.8MB in the end (delta: -20.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 118.47ms. Allocated memory is still 155.2MB. Free memory was 116.8MB in the beginning and 108.1MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:56,788 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-27b4987-m [2024-09-21 12:47:58,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:58,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 12:47:58,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:58,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:59,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:59,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:59,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:59,017 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:59,018 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:59,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:59,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:59,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:59,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:59,022 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:59,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:59,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:59,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:59,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:59,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:59,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:59,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:59,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:59,028 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 12:47:59,028 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 12:47:59,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:59,028 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 12:47:59,029 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:59,029 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:59,029 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:59,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:59,030 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:59,030 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:59,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:59,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:59,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:59,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:59,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:59,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:59,034 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 12:47:59,034 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 12:47:59,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:59,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:59,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:59,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:59,037 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 12:47:59,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:59,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:59,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:59,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:59,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:59,377 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:59,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-21 12:48:00,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:48:01,163 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:48:01,164 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-21 12:48:01,177 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/2a5d0ca44/3f836b6dc4414ff8affda0e3917a97c5/FLAG6f2cf2e12 [2024-09-21 12:48:01,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/2a5d0ca44/3f836b6dc4414ff8affda0e3917a97c5 [2024-09-21 12:48:01,193 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:48:01,200 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:48:01,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-21 12:48:01,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:48:01,255 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:48:01,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:48:01,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:48:01,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:48:01,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:48:01" (1/2) ... [2024-09-21 12:48:01,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fac2ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:48:01" (1/2) ... [2024-09-21 12:48:01,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b61e995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:48:01" (2/2) ... [2024-09-21 12:48:01,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fac2ed3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:48:01" (2/2) ... [2024-09-21 12:48:01,281 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:48:01,282 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-21 12:48:01,303 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:48:01,494 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-21 12:48:01,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:48:01,517 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:48:01,536 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-21 12:48:01,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:48:01,586 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:48:01,587 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:01 WrapperNode [2024-09-21 12:48:01,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:48:01,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:48:01,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:48:01,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:48:01,601 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,602 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,610 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,624 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]. [2024-09-21 12:48:01,624 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,624 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,630 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,632 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,633 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,634 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:48:01,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:48:01,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:48:01,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:48:01,637 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 21.09 12:48:01" (1/1) ... [2024-09-21 12:48:01,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:48:01,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:48:01,670 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) [2024-09-21 12:48:01,674 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 [2024-09-21 12:48:01,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:48:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:48:01,720 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:48:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:48:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:48:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:48:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:48:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:48:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:48:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:48:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:48:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:48:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:48:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:48:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-21 12:48:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:48:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-21 12:48:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-21 12:48:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:48:01,787 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:48:01,789 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:48:03,737 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:48:03,783 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:48:03,783 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:48:03,783 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:48:03 BoogieIcfgContainer [2024-09-21 12:48:03,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:48:03,788 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:48:03,791 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:48:03,792 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:48:03,792 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:48:01" (1/4) ... [2024-09-21 12:48:03,792 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2afccfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:48:03, skipping insertion in model container [2024-09-21 12:48:03,793 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:48:01" (2/4) ... [2024-09-21 12:48:03,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2afccfe2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:48:03, skipping insertion in model container [2024-09-21 12:48:03,793 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 21.09 12:48:01" (3/4) ... [2024-09-21 12:48:03,793 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2afccfe2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:48:03, skipping insertion in model container [2024-09-21 12:48:03,793 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:48:03" (4/4) ... [2024-09-21 12:48:03,796 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-21 12:48:03,802 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:48:03,803 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-21 12:48:03,803 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-21 12:48:03,804 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:48:03,861 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-21 12:48:03,864 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:48:03,865 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:48:03,865 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:48:03,866 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:48:03,868 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:48:03,962 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-21 12:48:03,963 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:48:03,964 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:48:03,964 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:48:03,964 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:48:03,965 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:48:03,966 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) [2024-09-21 12:48:03,970 INFO L158 Benchmark]: Toolchain (without parser) took 2714.40ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 31.5MB in the beginning and 40.4MB in the end (delta: -8.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-09-21 12:48:03,971 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 44.0MB. Free memory is still 20.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:48:03,971 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 60.8MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:48:03,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.80ms. Allocated memory is still 60.8MB. Free memory was 31.2MB in the beginning and 33.3MB in the end (delta: -2.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-09-21 12:48:03,973 INFO L158 Benchmark]: Boogie Preprocessor took 47.86ms. Allocated memory is still 60.8MB. Free memory was 33.3MB in the beginning and 31.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-21 12:48:03,973 INFO L158 Benchmark]: RCFGBuilder took 2150.97ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 31.0MB in the beginning and 51.9MB in the end (delta: -20.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:48:03,975 INFO L158 Benchmark]: Referee took 180.64ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 40.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:48:03,977 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 0.38ms. Allocated memory is still 44.0MB. Free memory is still 20.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.19ms. Allocated memory is still 60.8MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.80ms. Allocated memory is still 60.8MB. Free memory was 31.2MB in the beginning and 33.3MB in the end (delta: -2.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.86ms. Allocated memory is still 60.8MB. Free memory was 33.3MB in the beginning and 31.0MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2150.97ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 31.0MB in the beginning and 51.9MB in the end (delta: -20.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 180.64ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 40.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:48:04,006 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...