/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test12.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:26:51,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:26:51,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:26:51,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:26:51,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:26:51,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:26:51,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:26:51,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:26:51,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:26:51,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:26:51,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:26:51,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:26:51,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:26:51,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:26:51,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:26:51,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:26:51,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:26:51,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:26:51,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:26:51,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:26:51,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:26:51,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:26:51,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:26:51,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:26:51,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 17:26:51,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 17:26:51,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 17:26:51,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 17:26:51,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 17:26:51,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 17:26:51,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 17:26:51,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 17:26:51,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 17:26:51,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 17:26:51,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 17:26:51,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 17:26:51,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 17:26:51,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 17:26:51,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:26:51,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:26:51,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:26:51,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:26:51,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:26:51,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:26:51,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:26:51,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:26:51,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:26:51,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:26:51,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:26:51,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:26:51,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:26:51,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:26:51,136 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:26:51,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:26:51,136 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:26:51,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:26:51,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:26:51,137 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:26:51,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:26:51,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:26:51,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:26:51,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:26:51,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:26:51,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:26:51,138 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 17:26:51,414 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:26:51,435 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:26:51,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:26:51,439 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:26:51,439 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:26:51,440 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test12.c [2020-07-17 17:26:51,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/192babfb6/f79a08ec6c1f4822a14ea2e34444a552/FLAG82375daee [2020-07-17 17:26:51,900 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:26:51,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test12.c [2020-07-17 17:26:51,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/192babfb6/f79a08ec6c1f4822a14ea2e34444a552/FLAG82375daee [2020-07-17 17:26:52,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/192babfb6/f79a08ec6c1f4822a14ea2e34444a552 [2020-07-17 17:26:52,285 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:26:52,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:26:52,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:26:52,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:26:52,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:26:52,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b59e439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52, skipping insertion in model container [2020-07-17 17:26:52,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:26:52,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:26:52,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:26:52,568 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:26:52,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:26:52,602 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:26:52,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52 WrapperNode [2020-07-17 17:26:52,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:26:52,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:26:52,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:26:52,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:26:52,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (1/1) ... [2020-07-17 17:26:52,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:26:52,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:26:52,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:26:52,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:26:52,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (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 [2020-07-17 17:26:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:26:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:26:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-07-17 17:26:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:26:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:26:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-07-17 17:26:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 17:26:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 17:26:53,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:26:53,007 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 17:26:53,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:26:53 BoogieIcfgContainer [2020-07-17 17:26:53,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:26:53,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:26:53,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:26:53,033 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:26:53,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:26:52" (1/3) ... [2020-07-17 17:26:53,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c43aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:26:53, skipping insertion in model container [2020-07-17 17:26:53,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:26:52" (2/3) ... [2020-07-17 17:26:53,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c43aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:26:53, skipping insertion in model container [2020-07-17 17:26:53,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:26:53" (3/3) ... [2020-07-17 17:26:53,044 INFO L109 eAbstractionObserver]: Analyzing ICFG test12.c [2020-07-17 17:26:53,063 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:26:53,070 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:26:53,084 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:26:53,105 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:26:53,105 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:26:53,105 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:26:53,106 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:26:53,106 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:26:53,106 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:26:53,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:26:53,106 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:26:53,121 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-17 17:26:53,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-17 17:26:53,131 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:26:53,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:26:53,133 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:26:53,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:26:53,139 INFO L82 PathProgramCache]: Analyzing trace with hash 923328836, now seen corresponding path program 1 times [2020-07-17 17:26:53,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:26:53,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351116839] [2020-07-17 17:26:53,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:26:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:26:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 17:26:53,331 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 17:26:53,332 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 17:26:53,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:26:53,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:26:53 BoogieIcfgContainer [2020-07-17 17:26:53,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:26:53,366 INFO L168 Benchmark]: Toolchain (without parser) took 1077.02 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 104.0 MB in the beginning and 154.8 MB in the end (delta: -50.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:53,368 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 17:26:53,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.50 ms. Allocated memory is still 146.8 MB. Free memory was 103.7 MB in the beginning and 94.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:53,371 INFO L168 Benchmark]: Boogie Preprocessor took 117.57 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 182.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:53,372 INFO L168 Benchmark]: RCFGBuilder took 290.38 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 168.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:53,373 INFO L168 Benchmark]: TraceAbstraction took 336.29 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 154.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-07-17 17:26:53,378 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 146.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.50 ms. Allocated memory is still 146.8 MB. Free memory was 103.7 MB in the beginning and 94.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.57 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 182.6 MB in the end (delta: -88.4 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 290.38 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 168.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 336.29 ms. Allocated memory is still 203.9 MB. Free memory was 168.2 MB in the beginning and 154.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 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)=5, \old(a)=8, \old(b)=10, \old(b)=7, 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, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=24occurred 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, 16 NumberOfCodeBlocks, 16 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...