/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:44:23,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:44:23,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:44:23,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:44:23,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:44:23,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:44:23,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:44:23,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:44:23,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:44:23,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:44:23,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:44:23,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:44:23,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:44:23,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:44:23,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:44:23,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:44:23,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:44:23,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:44:23,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:44:23,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:44:23,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:44:23,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:44:23,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:44:23,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:44:23,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 00:44:23,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:44:23,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:44:23,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:44:23,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:44:23,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:44:23,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:44:23,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:44:23,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:44:23,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:44:23,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:44:23,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:44:23,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:44:23,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:44:23,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:44:23,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:44:23,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:44:23,430 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:44:23,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:44:23,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:44:23,431 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:44:23,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:44:23,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:44:23,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:44:23,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:44:23,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:44:23,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:44:23,432 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:44:23,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:44:23,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:44:23,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:44:23,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:44:23,851 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:44:23,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2020-11-07 00:44:23,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0b942bc/ecb13a3776674b83901eff67fe1a3f81/FLAG919a50c9a [2020-11-07 00:44:24,751 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:44:24,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_non_eq-3.c [2020-11-07 00:44:24,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0b942bc/ecb13a3776674b83901eff67fe1a3f81/FLAG919a50c9a [2020-11-07 00:44:25,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0b942bc/ecb13a3776674b83901eff67fe1a3f81 [2020-11-07 00:44:25,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:44:25,102 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:44:25,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:44:25,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:44:25,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:44:25,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efc2381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25, skipping insertion in model container [2020-11-07 00:44:25,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:44:25,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:44:25,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:44:25,328 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:44:25,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:44:25,371 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:44:25,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25 WrapperNode [2020-11-07 00:44:25,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:44:25,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:44:25,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:44:25,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:44:25,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... [2020-11-07 00:44:25,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:44:25,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:44:25,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:44:25,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:44:25,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:44:25,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:44:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:44:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:44:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-07 00:44:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:44:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-11-07 00:44:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:44:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:44:25,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:44:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:44:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-07 00:44:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:44:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:44:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:44:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:44:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:44:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:44:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:44:25,930 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:44:25,932 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:44:25,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:44:25 BoogieIcfgContainer [2020-11-07 00:44:25,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:44:25,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:44:25,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:44:25,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:44:25,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:44:25" (1/3) ... [2020-11-07 00:44:25,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d89d3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:44:25, skipping insertion in model container [2020-11-07 00:44:25,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:44:25" (2/3) ... [2020-11-07 00:44:25,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d89d3f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:44:25, skipping insertion in model container [2020-11-07 00:44:25,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:44:25" (3/3) ... [2020-11-07 00:44:25,954 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2020-11-07 00:44:25,973 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:44:25,976 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:44:25,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:44:26,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:44:26,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:44:26,032 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:44:26,032 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:44:26,032 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:44:26,032 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:44:26,032 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:44:26,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:44:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-07 00:44:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-07 00:44:26,067 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:44:26,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:44:26,069 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:44:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:44:26,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1017164755, now seen corresponding path program 1 times [2020-11-07 00:44:26,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:44:26,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518378271] [2020-11-07 00:44:26,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:44:26,184 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:44:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:44:26,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:44:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:44:26,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:44:26,469 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:44:26,470 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:44:26,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:44:26,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:44:26 BoogieIcfgContainer [2020-11-07 00:44:26,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:44:26,501 INFO L168 Benchmark]: Toolchain (without parser) took 1403.26 ms. Allocated memory is still 153.1 MB. Free memory was 130.2 MB in the beginning and 134.2 MB in the end (delta: -3.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:44:26,503 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 125.4 MB in the end (delta: 70.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:44:26,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.81 ms. Allocated memory is still 153.1 MB. Free memory was 129.6 MB in the beginning and 120.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:44:26,509 INFO L168 Benchmark]: Boogie Preprocessor took 38.93 ms. Allocated memory is still 153.1 MB. Free memory was 119.9 MB in the beginning and 118.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:44:26,510 INFO L168 Benchmark]: RCFGBuilder took 525.28 ms. Allocated memory is still 153.1 MB. Free memory was 118.7 MB in the beginning and 105.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:44:26,511 INFO L168 Benchmark]: TraceAbstraction took 556.71 ms. Allocated memory is still 153.1 MB. Free memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:44:26,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 153.1 MB. Free memory was 125.4 MB in the beginning and 125.4 MB in the end (delta: 70.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 266.81 ms. Allocated memory is still 153.1 MB. Free memory was 129.6 MB in the beginning and 120.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.93 ms. Allocated memory is still 153.1 MB. Free memory was 119.9 MB in the beginning and 118.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 525.28 ms. Allocated memory is still 153.1 MB. Free memory was 118.7 MB in the beginning and 105.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 556.71 ms. Allocated memory is still 153.1 MB. Free memory was 104.9 MB in the beginning and 134.2 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] unsigned int a = __VERIFIER_nondet_uint(); [L16] unsigned int b = __VERIFIER_nondet_uint(); [L17] CALL, EXPR sum(a, b) [L7] COND TRUE n == 0 [L8] return m; [L17] RET, EXPR sum(a, b) [L17] unsigned int result = sum(a, b); [L18] COND TRUE result == a + b [L19] CALL reach_error() [L4] __assert_fail("0", "sum_non_eq-3.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...