This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:16,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:16,096 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:46:16,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:16,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:16,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:16,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:16,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:16,134 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:16,137 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:16,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:16,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:16,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:16,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:16,139 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:16,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:16,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:16,140 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:16,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:46:16,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:16,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:16,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:16,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:16,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:16,143 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:16,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:16,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:16,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:16,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:16,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:16,145 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:16,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:16,145 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:16,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:16,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:16,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:16,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:16,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:46:16,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:46:16,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:16,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:16,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:16,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:16,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:16,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:16,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:16,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:16,480 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:16,481 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:16,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 11:46:17,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:18,098 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:18,099 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 11:46:18,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/40c300eef/0cf69853c7e347db9bce8365998ebb22/FLAG7cfed8f0e [2024-09-25 11:46:18,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/40c300eef/0cf69853c7e347db9bce8365998ebb22 [2024-09-25 11:46:18,128 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:18,129 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:18,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-25 11:46:18,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:18,181 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:18,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:18,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:18,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:18,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:18" (1/2) ... [2024-09-25 11:46:18,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7221c5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:18, skipping insertion in model container [2024-09-25 11:46:18,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:18" (1/2) ... [2024-09-25 11:46:18,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a2203ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:18, skipping insertion in model container [2024-09-25 11:46:18,195 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:18" (2/2) ... [2024-09-25 11:46:18,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7221c5d3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:18, skipping insertion in model container [2024-09-25 11:46:18,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:18" (2/2) ... [2024-09-25 11:46:18,208 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:18,209 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))) [2024-09-25 11:46:18,209 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:18,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:18,403 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] [2024-09-25 11:46:18,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:18,420 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:46:18,467 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 [2024-09-25 11:46:18,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:18,494 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:18,495 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:18 WrapperNode [2024-09-25 11:46:18,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:18,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:18,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:18,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:18,510 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,510 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,518 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,529 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 11:46:18,529 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,530 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,533 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,535 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,536 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,537 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:18,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:18,540 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:18,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:18,540 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 25.09 11:46:18" (1/1) ... [2024-09-25 11:46:18,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:18,584 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) [2024-09-25 11:46:18,591 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 [2024-09-25 11:46:18,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:18,632 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:18,634 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:46:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:18,728 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:18,732 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:18,922 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:18,946 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:18,947 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:18,947 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:18 BoogieIcfgContainer [2024-09-25 11:46:18,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:18,948 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:18,948 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:18,948 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:18,948 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:18" (1/4) ... [2024-09-25 11:46:18,949 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2fc3238a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:18, skipping insertion in model container [2024-09-25 11:46:18,949 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:18" (2/4) ... [2024-09-25 11:46:18,949 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2fc3238a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:18, skipping insertion in model container [2024-09-25 11:46:18,949 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 25.09 11:46:18" (3/4) ... [2024-09-25 11:46:18,949 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2fc3238a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:18, skipping insertion in model container [2024-09-25 11:46:18,949 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:18" (4/4) ... [2024-09-25 11:46:18,950 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-25 11:46:18,953 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:18,954 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 22 edges. [2024-09-25 11:46:18,954 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-25 11:46:18,954 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-25 11:46:18,954 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:18,998 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 22 edges [2024-09-25 11:46:18,999 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:18,999 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:18,999 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:19,001 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:19,002 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:19,085 INFO L101 BaseMinimizeStates]: Removed 47 edges and 11 locations by large block encoding [2024-09-25 11:46:19,086 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:19,087 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:19,087 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:19,087 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:19,091 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:46:19,092 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) [2024-09-25 11:46:19,096 INFO L158 Benchmark]: Toolchain (without parser) took 913.99ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 111.0MB in the end (delta: 5.7MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-09-25 11:46:19,097 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:19,097 INFO L158 Benchmark]: Witness Parser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:19,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.51ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 102.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:46:19,098 INFO L158 Benchmark]: Boogie Preprocessor took 42.68ms. Allocated memory is still 159.4MB. Free memory was 102.9MB in the beginning and 100.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 11:46:19,099 INFO L158 Benchmark]: RCFGBuilder took 407.72ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 122.0MB in the end (delta: -21.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:19,099 INFO L158 Benchmark]: Referee took 146.99ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 111.0MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:46:19,102 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.76ms. Allocated memory is still 159.4MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.51ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 102.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.68ms. Allocated memory is still 159.4MB. Free memory was 102.9MB in the beginning and 100.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 407.72ms. Allocated memory is still 159.4MB. Free memory was 100.9MB in the beginning and 122.0MB in the end (delta: -21.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 146.99ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 111.0MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:46:19,141 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-fb1cb0b-m [2024-09-25 11:46:21,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:21,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:46:21,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:21,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:21,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:21,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:21,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:21,335 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:21,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:21,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:21,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:21,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:21,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:21,342 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:21,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:21,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:21,343 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:21,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:21,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:21,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:21,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:21,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:21,346 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:46:21,346 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:46:21,347 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:21,347 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:46:21,347 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:21,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:21,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:21,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:21,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:21,349 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:21,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:21,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:21,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:21,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:21,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:21,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:21,352 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:46:21,352 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:46:21,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:21,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:21,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:21,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:21,355 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:46:21,355 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:21,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:21,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:21,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:21,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:21,707 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:21,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 11:46:23,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:23,409 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:23,409 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 11:46:23,421 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/02a5b8b08/594b28dc767a49d884f1bafbdbf8d8d0/FLAGd3202589f [2024-09-25 11:46:23,438 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/02a5b8b08/594b28dc767a49d884f1bafbdbf8d8d0 [2024-09-25 11:46:23,440 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:23,441 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:23,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-25 11:46:23,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:23,498 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:23,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:23,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:23,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:23,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:23" (1/2) ... [2024-09-25 11:46:23,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fa9a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:23, skipping insertion in model container [2024-09-25 11:46:23,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:23" (1/2) ... [2024-09-25 11:46:23,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46f7a830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:23, skipping insertion in model container [2024-09-25 11:46:23,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:23" (2/2) ... [2024-09-25 11:46:23,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fa9a8f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:23, skipping insertion in model container [2024-09-25 11:46:23,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:23" (2/2) ... [2024-09-25 11:46:23,522 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:23,523 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))) [2024-09-25 11:46:23,523 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:23,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:23,706 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-25 11:46:23,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:23,730 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:46:23,786 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 [2024-09-25 11:46:23,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:23,809 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:23,810 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:23 WrapperNode [2024-09-25 11:46:23,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:23,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:23,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:23,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:23,824 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,824 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,832 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,849 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 11:46:23,849 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,849 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,860 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,862 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,866 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,867 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:23,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:23,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:23,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:23,875 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 25.09 11:46:23" (1/1) ... [2024-09-25 11:46:23,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:23,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:23,907 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) [2024-09-25 11:46:23,912 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 [2024-09-25 11:46:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:23,956 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:23,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:23,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:46:23,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:24,036 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:24,039 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:26,005 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:26,044 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:26,044 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:26,045 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:26 BoogieIcfgContainer [2024-09-25 11:46:26,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:26,045 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:26,046 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:26,046 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:26,046 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:23" (1/4) ... [2024-09-25 11:46:26,047 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4f604430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:26, skipping insertion in model container [2024-09-25 11:46:26,047 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:23" (2/4) ... [2024-09-25 11:46:26,049 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4f604430 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:26, skipping insertion in model container [2024-09-25 11:46:26,049 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 25.09 11:46:23" (3/4) ... [2024-09-25 11:46:26,050 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4f604430 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:26, skipping insertion in model container [2024-09-25 11:46:26,050 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:26" (4/4) ... [2024-09-25 11:46:26,051 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-25 11:46:26,054 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:26,055 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 22 edges. [2024-09-25 11:46:26,056 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-25 11:46:26,056 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-25 11:46:26,057 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:26,101 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 22 edges [2024-09-25 11:46:26,102 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:26,102 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:26,103 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:26,104 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:26,106 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:26,183 INFO L101 BaseMinimizeStates]: Removed 47 edges and 11 locations by large block encoding [2024-09-25 11:46:26,184 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:26,184 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:26,184 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:26,185 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:26,192 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:46:26,193 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) [2024-09-25 11:46:26,201 INFO L158 Benchmark]: Toolchain (without parser) took 2702.44ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 50.8MB in the end (delta: -1.8MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,202 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:26,202 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 79.7MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:26,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.92ms. Allocated memory is still 79.7MB. Free memory was 48.8MB in the beginning and 56.4MB in the end (delta: -7.6MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,203 INFO L158 Benchmark]: Boogie Preprocessor took 61.78ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 54.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,204 INFO L158 Benchmark]: RCFGBuilder took 2171.21ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 38.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,204 INFO L158 Benchmark]: Referee took 153.82ms. Allocated memory is still 79.7MB. Free memory was 38.9MB in the beginning and 50.8MB in the end (delta: -11.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:26,209 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 0.13ms. Allocated memory is still 60.8MB. Free memory was 43.0MB in the beginning and 42.9MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 79.7MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.92ms. Allocated memory is still 79.7MB. Free memory was 48.8MB in the beginning and 56.4MB in the end (delta: -7.6MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.78ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 54.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2171.21ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 38.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 153.82ms. Allocated memory is still 79.7MB. Free memory was 38.9MB in the beginning and 50.8MB in the end (delta: -11.9MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:46:26,246 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...