./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:03:48,042 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:03:48,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 05:03:48,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:03:48,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:03:48,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:03:48,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:03:48,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:03:48,133 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:03:48,134 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:03:48,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:03:48,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:03:48,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:03:48,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:03:48,137 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:03:48,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:03:48,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:03:48,137 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:03:48,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:03:48,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:03:48,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:03:48,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:03:48,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:03:48,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:03:48,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:03:48,142 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:03:48,142 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:03:48,142 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:03:48,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:03:48,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:03:48,143 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 05:03:48,143 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:03:48,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:03:48,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:48,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:03:48,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:03:48,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:03:48,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:03:48,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:03:48,145 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:03:48,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:03:48,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:03:48,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:03:48,146 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:03:48,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:03:48,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:03:48,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:03:48,424 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:03:48,426 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:03:48,428 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-13 05:03:48,474 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:03:48,475 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:03:48,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 05:03:49,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:03:49,926 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:03:49,927 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 05:03:49,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b81e973e1/9b0525f718484485883b559509f8c503/FLAG07aeab755 [2024-09-13 05:03:49,948 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b81e973e1/9b0525f718484485883b559509f8c503 [2024-09-13 05:03:49,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:03:49,949 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 05:03:49,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:49,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:03:49,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:03:49,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:03:48" (1/2) ... [2024-09-13 05:03:49,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7eeb4a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:49, skipping insertion in model container [2024-09-13 05:03:49,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:03:48" (1/2) ... [2024-09-13 05:03:49,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cf5bc80 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:49, skipping insertion in model container [2024-09-13 05:03:49,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:49" (2/2) ... [2024-09-13 05:03:49,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e7eeb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:49, skipping insertion in model container [2024-09-13 05:03:49,959 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:49" (2/2) ... [2024-09-13 05:03:49,967 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:03:49,968 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-13 05:03:49,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:03:50,121 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2024-09-13 05:03:50,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:50,138 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 05:03:50,155 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-13 05:03:50,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:50,194 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:03:50,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50 WrapperNode [2024-09-13 05:03:50,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:50,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:03:50,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:03:50,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:03:50,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,224 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 05:03:50,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,224 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:03:50,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:03:50,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:03:50,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:03:50,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (1/1) ... [2024-09-13 05:03:50,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:50,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 05:03:50,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 05:03:50,266 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 05:03:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 05:03:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:03:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 05:03:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 05:03:50,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 05:03:50,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 05:03:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:03:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:03:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 05:03:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 05:03:50,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 05:03:50,368 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:03:50,370 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:03:50,495 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:03:50,522 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:03:50,522 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 05:03:50,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:50 BoogieIcfgContainer [2024-09-13 05:03:50,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:03:50,523 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 05:03:50,523 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 05:03:50,526 INFO L274 PluginConnector]: Referee initialized [2024-09-13 05:03:50,526 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:03:48" (1/4) ... [2024-09-13 05:03:50,527 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4a8ec0cb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 05:03:50, skipping insertion in model container [2024-09-13 05:03:50,527 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 05:03:49" (2/4) ... [2024-09-13 05:03:50,527 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4a8ec0cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:50, skipping insertion in model container [2024-09-13 05:03:50,527 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:50" (3/4) ... [2024-09-13 05:03:50,527 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4a8ec0cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:50, skipping insertion in model container [2024-09-13 05:03:50,528 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:50" (4/4) ... [2024-09-13 05:03:50,529 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-13 05:03:50,532 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 05:03:50,532 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 05:03:50,533 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 05:03:50,533 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 05:03:50,565 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 05:03:50,566 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 05:03:50,566 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 05:03:50,567 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 05:03:50,567 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 05:03:50,569 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:50,597 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 05:03:50,598 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:50,600 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 05:03:50,600 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 05:03:50,601 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 05:03:50,601 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 05:03:50,602 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 05:03:50,605 INFO L158 Benchmark]: Toolchain (without parser) took 655.60ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 119.6MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 05:03:50,606 INFO L158 Benchmark]: Witness Parser took 0.25ms. Allocated memory is still 161.5MB. Free memory was 130.5MB in the beginning and 130.3MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:50,606 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 161.5MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:50,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.69ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 114.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:03:50,607 INFO L158 Benchmark]: Boogie Preprocessor took 40.35ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 05:03:50,607 INFO L158 Benchmark]: RCFGBuilder took 286.65ms. Allocated memory is still 161.5MB. Free memory was 112.1MB in the beginning and 125.0MB in the end (delta: -12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-13 05:03:50,608 INFO L158 Benchmark]: Referee took 80.72ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 119.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 05:03:50,610 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 0.25ms. Allocated memory is still 161.5MB. Free memory was 130.5MB in the beginning and 130.3MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 161.5MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.69ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 114.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.35ms. Allocated memory is still 161.5MB. Free memory was 114.4MB in the beginning and 112.1MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 286.65ms. Allocated memory is still 161.5MB. Free memory was 112.1MB in the beginning and 125.0MB in the end (delta: -12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 80.72ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 119.6MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 05:03:50,630 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:03:52,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:03:52,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 05:03:52,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:03:52,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:03:52,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:03:52,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:03:52,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:03:52,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:03:52,502 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:03:52,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:03:52,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:03:52,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:03:52,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:03:52,503 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:03:52,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:03:52,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:03:52,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:03:52,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:03:52,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:03:52,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:03:52,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:03:52,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:03:52,509 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 05:03:52,509 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 05:03:52,509 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:03:52,510 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 05:03:52,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:03:52,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:03:52,510 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:03:52,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:03:52,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:03:52,510 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 05:03:52,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:03:52,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:03:52,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:52,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:03:52,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:03:52,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:03:52,512 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 05:03:52,512 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 05:03:52,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:03:52,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:03:52,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:03:52,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:03:52,513 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 05:03:52,514 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:03:52,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:03:52,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:03:52,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:03:52,798 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:03:52,798 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:03:52,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-13 05:03:52,845 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:03:52,845 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:03:52,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 05:03:54,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:03:54,344 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:03:54,344 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-13 05:03:54,350 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/039edc95c/2af4c9feb43f4cc290e1b51d77f45da1/FLAG66e1ac5db [2024-09-13 05:03:54,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/039edc95c/2af4c9feb43f4cc290e1b51d77f45da1 [2024-09-13 05:03:54,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:03:54,364 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 05:03:54,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:54,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:03:54,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:03:54,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:03:52" (1/2) ... [2024-09-13 05:03:54,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5004f834 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:54, skipping insertion in model container [2024-09-13 05:03:54,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:03:52" (1/2) ... [2024-09-13 05:03:54,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cbbc5c8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:54, skipping insertion in model container [2024-09-13 05:03:54,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:54" (2/2) ... [2024-09-13 05:03:54,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5004f834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54, skipping insertion in model container [2024-09-13 05:03:54,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:54" (2/2) ... [2024-09-13 05:03:54,376 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:03:54,377 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-13 05:03:54,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:03:54,525 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] [2024-09-13 05:03:54,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:54,545 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 05:03:54,559 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-13 05:03:54,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:54,603 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:03:54,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54 WrapperNode [2024-09-13 05:03:54,604 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:54,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:03:54,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:03:54,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:03:54,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,631 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,647 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 05:03:54,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:03:54,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:03:54,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:03:54,666 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:03:54,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (1/1) ... [2024-09-13 05:03:54,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:54,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 05:03:54,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 05:03:54,700 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 05:03:54,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 05:03:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:03:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 05:03:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 05:03:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 05:03:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 05:03:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 05:03:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 05:03:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 05:03:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:03:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 05:03:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 05:03:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 05:03:54,805 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:03:54,809 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:03:59,026 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:03:59,053 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:03:59,056 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 05:03:59,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:59 BoogieIcfgContainer [2024-09-13 05:03:59,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:03:59,057 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 05:03:59,057 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 05:03:59,058 INFO L274 PluginConnector]: Referee initialized [2024-09-13 05:03:59,058 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:03:52" (1/4) ... [2024-09-13 05:03:59,058 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@67f0918d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 05:03:59, skipping insertion in model container [2024-09-13 05:03:59,059 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 05:03:54" (2/4) ... [2024-09-13 05:03:59,059 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@67f0918d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:59, skipping insertion in model container [2024-09-13 05:03:59,059 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:54" (3/4) ... [2024-09-13 05:03:59,059 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@67f0918d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:59, skipping insertion in model container [2024-09-13 05:03:59,059 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:59" (4/4) ... [2024-09-13 05:03:59,060 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-13 05:03:59,065 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 05:03:59,066 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 05:03:59,066 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 05:03:59,066 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 05:03:59,100 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 05:03:59,101 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 05:03:59,101 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 05:03:59,102 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 05:03:59,102 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 05:03:59,104 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:59,134 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 05:03:59,135 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:59,135 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 05:03:59,135 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 05:03:59,136 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 05:03:59,136 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 05:03:59,136 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 05:03:59,139 INFO L158 Benchmark]: Toolchain (without parser) took 4774.98ms. Allocated memory is still 94.4MB. Free memory was 65.4MB in the beginning and 51.4MB in the end (delta: 13.9MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-09-13 05:03:59,140 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:59,140 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 62.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:59,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.61ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 50.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:03:59,140 INFO L158 Benchmark]: Boogie Preprocessor took 59.41ms. Allocated memory is still 94.4MB. Free memory was 50.9MB in the beginning and 72.7MB in the end (delta: -21.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 05:03:59,141 INFO L158 Benchmark]: RCFGBuilder took 4391.97ms. Allocated memory is still 94.4MB. Free memory was 72.7MB in the beginning and 58.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:03:59,143 INFO L158 Benchmark]: Referee took 80.78ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 51.4MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 05:03:59,147 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 0.15ms. Allocated memory is still 62.9MB. Free memory was 43.4MB in the beginning and 43.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 62.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.61ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 50.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.41ms. Allocated memory is still 94.4MB. Free memory was 50.9MB in the beginning and 72.7MB in the end (delta: -21.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 4391.97ms. Allocated memory is still 94.4MB. Free memory was 72.7MB in the beginning and 58.6MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 80.78ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 51.4MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 05:03:59,175 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug