/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:18:26,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:18:26,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:18:26,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:18:26,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:18:26,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:18:26,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:18:26,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:18:26,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:18:26,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:18:26,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:18:26,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:18:26,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:18:26,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:18:26,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:18:26,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:18:26,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:18:26,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:18:26,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:18:26,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:18:26,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:18:26,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:18:26,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:18:26,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:18:26,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:18:26,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:18:26,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:18:26,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:18:26,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:18:26,333 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:18:26,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:18:26,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:18:26,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:18:26,335 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:18:26,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:18:26,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:18:26,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:18:26,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:18:26,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:18:26,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:18:26,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:18:26,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:18:26,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:18:26,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:18:26,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:18:26,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:18:26,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:18:26,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:18:26,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:18:26,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:18:26,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:18:26,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:18:26,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:18:26,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:18:26,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:18:26,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:18:26,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:18:26,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:18:26,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:18:26,608 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:18:26,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:18:26,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:18:26,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:18:26,632 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:18:26,633 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test12.c [2020-07-07 11:18:26,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9866ff4/da517e0ea9db4e06a7793b03a91541fc/FLAG5131c048c [2020-07-07 11:18:27,137 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:18:27,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test12.c [2020-07-07 11:18:27,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9866ff4/da517e0ea9db4e06a7793b03a91541fc/FLAG5131c048c [2020-07-07 11:18:27,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e9866ff4/da517e0ea9db4e06a7793b03a91541fc [2020-07-07 11:18:27,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:18:27,589 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:18:27,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:18:27,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:18:27,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:18:27,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35d44950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27, skipping insertion in model container [2020-07-07 11:18:27,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:18:27,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:18:27,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:18:27,770 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:18:27,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:18:27,808 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:18:27,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27 WrapperNode [2020-07-07 11:18:27,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:18:27,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:18:27,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:18:27,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:18:27,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (1/1) ... [2020-07-07 11:18:27,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:18:27,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:18:27,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:18:27,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:18:27,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (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 [2020-07-07 11:18:27,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:18:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:18:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-07-07 11:18:27,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:18:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:18:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-07-07 11:18:27,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:18:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:18:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 11:18:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 11:18:27,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:18:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 11:18:27,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 11:18:27,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:18:28,181 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:18:28,181 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 11:18:28,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:18:28 BoogieIcfgContainer [2020-07-07 11:18:28,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:18:28,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:18:28,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:18:28,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:18:28,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:18:27" (1/3) ... [2020-07-07 11:18:28,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579942eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:18:28, skipping insertion in model container [2020-07-07 11:18:28,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:18:27" (2/3) ... [2020-07-07 11:18:28,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579942eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:18:28, skipping insertion in model container [2020-07-07 11:18:28,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:18:28" (3/3) ... [2020-07-07 11:18:28,192 INFO L109 eAbstractionObserver]: Analyzing ICFG test12.c [2020-07-07 11:18:28,202 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:18:28,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:18:28,222 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:18:28,244 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:18:28,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:18:28,245 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:18:28,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:18:28,245 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:18:28,245 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:18:28,245 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:18:28,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:18:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-07 11:18:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-07 11:18:28,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:18:28,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:18:28,270 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:18:28,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:18:28,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1534444928, now seen corresponding path program 1 times [2020-07-07 11:18:28,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:18:28,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90006234] [2020-07-07 11:18:28,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:18:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:18:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 11:18:28,416 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 11:18:28,417 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 11:18:28,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:18:28,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:18:28 BoogieIcfgContainer [2020-07-07 11:18:28,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:18:28,449 INFO L168 Benchmark]: Toolchain (without parser) took 859.08 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 105.1 MB in the beginning and 155.2 MB in the end (delta: -50.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-07-07 11:18:28,450 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 11:18:28,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 219.14 ms. Allocated memory is still 146.8 MB. Free memory was 104.9 MB in the beginning and 95.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:18:28,452 INFO L168 Benchmark]: Boogie Preprocessor took 111.82 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 95.3 MB in the beginning and 182.0 MB in the end (delta: -86.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-07 11:18:28,453 INFO L168 Benchmark]: RCFGBuilder took 262.86 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 169.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:18:28,454 INFO L168 Benchmark]: TraceAbstraction took 260.41 ms. Allocated memory is still 203.4 MB. Free memory was 168.3 MB in the beginning and 155.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:18:28,458 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 219.14 ms. Allocated memory is still 146.8 MB. Free memory was 104.9 MB in the beginning and 95.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.82 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 95.3 MB in the beginning and 182.0 MB in the end (delta: -86.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 262.86 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 169.0 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260.41 ms. Allocated memory is still 203.4 MB. Free memory was 168.3 MB in the beginning and 155.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int a, b; VAL [\old(a)=8, \old(a)=5, \old(b)=7, \old(b)=10, a={3:0}, b={2:0}] [L17] CALL equal(&a, &b) VAL [a={3:0}, a={3:0}, b={2:0}, b={2:0}] [L5] COND TRUE a != b VAL [a={3:0}, a={3:0}, a={3:0}, b={2:0}, b={2:0}, b={2:0}] [L10] __VERIFIER_error() VAL [a={3:0}, a={3:0}, a={3:0}, b={2:0}, b={2:0}, b={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=17occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...