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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loops/count_up_down-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 20:36:34,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 20:36:34,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 20:36:34,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 20:36:34,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 20:36:34,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 20:36:34,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 20:36:34,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 20:36:34,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 20:36:34,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 20:36:34,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 20:36:34,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 20:36:34,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 20:36:34,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 20:36:34,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 20:36:34,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 20:36:34,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 20:36:34,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 20:36:34,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 20:36:34,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 20:36:34,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 20:36:34,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 20:36:34,261 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 20:36:34,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 20:36:34,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-03 20:36:34,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-03 20:36:34,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-03 20:36:34,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-03 20:36:34,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-03 20:36:34,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-03 20:36:34,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 20:36:34,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 20:36:34,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 20:36:34,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 20:36:34,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 20:36:34,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 20:36:34,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 20:36:34,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 20:36:34,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 20:36:34,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 20:36:34,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 20:36:34,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-03 20:36:34,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 20:36:34,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 20:36:34,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 20:36:34,317 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 20:36:34,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 20:36:34,318 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 20:36:34,318 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 20:36:34,322 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 20:36:34,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 20:36:34,323 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 20:36:34,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 20:36:34,324 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 20:36:34,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 20:36:34,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 20:36:34,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 20:36:34,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 20:36:34,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 20:36:34,325 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 20:36:34,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 20:36:34,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 20:36:34,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 20:36:34,327 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 20:36:34,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 20:36:34,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 20:36:34,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 20:36:34,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 20:36:34,328 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 20:36:34,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 20:36:34,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 20:36:34,329 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 20:36:34,364 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 20:36:34,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 20:36:34,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 20:36:34,383 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 20:36:34,383 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 20:36:34,384 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/count_up_down-2.c [2019-09-03 20:36:34,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe15e0cfc/1d3d50a2c5e2460ea8b62eb53ff7ffa1/FLAGa943dbf2b [2019-09-03 20:36:34,887 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 20:36:34,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/count_up_down-2.c [2019-09-03 20:36:34,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe15e0cfc/1d3d50a2c5e2460ea8b62eb53ff7ffa1/FLAGa943dbf2b [2019-09-03 20:36:35,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe15e0cfc/1d3d50a2c5e2460ea8b62eb53ff7ffa1 [2019-09-03 20:36:35,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 20:36:35,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 20:36:35,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 20:36:35,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 20:36:35,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 20:36:35,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2301ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35, skipping insertion in model container [2019-09-03 20:36:35,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,333 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 20:36:35,347 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 20:36:35,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:36:35,532 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 20:36:35,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:36:35,563 INFO L192 MainTranslator]: Completed translation [2019-09-03 20:36:35,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35 WrapperNode [2019-09-03 20:36:35,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 20:36:35,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 20:36:35,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 20:36:35,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 20:36:35,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (1/1) ... [2019-09-03 20:36:35,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 20:36:35,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 20:36:35,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 20:36:35,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 20:36:35,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (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 [2019-09-03 20:36:35,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 20:36:35,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 20:36:35,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 20:36:35,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 20:36:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 20:36:35,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 20:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 20:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 20:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 20:36:35,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 20:36:35,896 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 20:36:35,896 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 20:36:35,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:36:35 BoogieIcfgContainer [2019-09-03 20:36:35,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 20:36:35,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 20:36:35,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 20:36:35,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 20:36:35,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 08:36:35" (1/3) ... [2019-09-03 20:36:35,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4112473c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:36:35, skipping insertion in model container [2019-09-03 20:36:35,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:36:35" (2/3) ... [2019-09-03 20:36:35,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4112473c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:36:35, skipping insertion in model container [2019-09-03 20:36:35,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:36:35" (3/3) ... [2019-09-03 20:36:35,909 INFO L109 eAbstractionObserver]: Analyzing ICFG count_up_down-2.c [2019-09-03 20:36:35,920 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 20:36:35,930 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 20:36:35,949 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 20:36:35,983 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 20:36:35,983 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-03 20:36:35,983 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 20:36:35,984 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 20:36:35,984 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 20:36:35,984 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 20:36:35,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 20:36:35,984 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 20:36:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-03 20:36:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-03 20:36:36,006 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:36:36,007 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:36:36,009 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:36:36,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:36:36,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2019-09-03 20:36:36,017 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:36:36,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:36,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:36:36,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:36:36,058 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:36:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-03 20:36:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-03 20:36:36,144 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-03 20:36:36,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 08:36:36 BoogieIcfgContainer [2019-09-03 20:36:36,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 20:36:36,164 INFO L168 Benchmark]: Toolchain (without parser) took 846.64 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 84.8 MB in the beginning and 151.0 MB in the end (delta: -66.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 20:36:36,166 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 20:36:36,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.82 ms. Allocated memory is still 137.4 MB. Free memory was 84.4 MB in the beginning and 75.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:36,168 INFO L168 Benchmark]: Boogie Preprocessor took 120.65 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 75.4 MB in the beginning and 175.3 MB in the end (delta: -99.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:36,169 INFO L168 Benchmark]: RCFGBuilder took 211.93 ms. Allocated memory is still 197.7 MB. Free memory was 175.3 MB in the beginning and 164.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:36,170 INFO L168 Benchmark]: TraceAbstraction took 263.26 ms. Allocated memory is still 197.7 MB. Free memory was 164.2 MB in the beginning and 151.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2019-09-03 20:36:36,174 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.82 ms. Allocated memory is still 137.4 MB. Free memory was 84.4 MB in the beginning and 75.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.65 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 75.4 MB in the beginning and 175.3 MB in the end (delta: -99.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 211.93 ms. Allocated memory is still 197.7 MB. Free memory was 175.3 MB in the beginning and 164.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263.26 ms. Allocated memory is still 197.7 MB. Free memory was 164.2 MB in the beginning and 151.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int n = __VERIFIER_nondet_uint(); [L14] unsigned int x=n, y=0; VAL [n=0, x=0, y=0] [L15] COND FALSE !(x>0) VAL [n=0, x=0, y=0] [L20] CALL __VERIFIER_assert(y!=n) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...