/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/bitvector-regression/implicitunsignedconversion-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:51:09,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:51:09,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:51:09,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:51:09,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:51:09,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:51:09,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:51:09,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:51:09,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:51:09,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:51:09,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:51:09,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:51:09,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:51:09,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:51:09,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:51:09,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:51:09,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:51:09,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:51:09,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:51:09,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:51:09,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:51:09,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:51:09,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:51:09,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:51:09,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:51:09,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:51:09,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:51:09,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:51:09,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:51:09,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:51:09,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:51:09,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:51:09,134 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:51:09,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:51:09,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:51:09,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:51:09,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:51:09,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:51:09,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:51:09,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:51:09,153 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:51:09,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:51:09,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:51:09,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:51:09,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:51:09,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:51:09,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:51:09,155 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:51:09,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:51:09,156 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:51:09,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:51:09,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:51:09,156 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:51:09,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:51:09,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:51:09,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:51:09,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:51:09,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:51:09,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:51:09,158 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 [2020-08-22 21:51:09,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:51:09,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:51:09,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:51:09,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:51:09,435 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:51:09,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c [2020-08-22 21:51:09,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef1a7c0e/0b9ccba743f44fa18ec7c67b46841ab8/FLAGca2efd2cc [2020-08-22 21:51:09,960 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:51:09,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c [2020-08-22 21:51:09,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef1a7c0e/0b9ccba743f44fa18ec7c67b46841ab8/FLAGca2efd2cc [2020-08-22 21:51:10,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef1a7c0e/0b9ccba743f44fa18ec7c67b46841ab8 [2020-08-22 21:51:10,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:51:10,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:51:10,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:51:10,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:51:10,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:51:10,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5537a615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10, skipping insertion in model container [2020-08-22 21:51:10,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:51:10,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:51:10,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:51:10,533 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:51:10,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:51:10,558 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:51:10,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10 WrapperNode [2020-08-22 21:51:10,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:51:10,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:51:10,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:51:10,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:51:10,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (1/1) ... [2020-08-22 21:51:10,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:51:10,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:51:10,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:51:10,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:51:10,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (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 [2020-08-22 21:51:10,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:51:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:51:10,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:51:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:51:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:51:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:51:10,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:51:10,856 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:51:10,856 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 21:51:10,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:51:10 BoogieIcfgContainer [2020-08-22 21:51:10,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:51:10,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:51:10,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:51:10,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:51:10,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:51:10" (1/3) ... [2020-08-22 21:51:10,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:51:10, skipping insertion in model container [2020-08-22 21:51:10,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:10" (2/3) ... [2020-08-22 21:51:10,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dae0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:51:10, skipping insertion in model container [2020-08-22 21:51:10,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:51:10" (3/3) ... [2020-08-22 21:51:10,867 INFO L109 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-1.c [2020-08-22 21:51:10,877 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:51:10,884 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:51:10,898 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:51:10,916 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:51:10,916 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:51:10,917 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:51:10,917 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:51:10,917 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:51:10,917 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:51:10,917 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:51:10,917 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:51:10,931 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-08-22 21:51:10,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-08-22 21:51:10,940 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:51:10,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:51:10,942 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:51:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:51:10,948 INFO L82 PathProgramCache]: Analyzing trace with hash 811150295, now seen corresponding path program 1 times [2020-08-22 21:51:10,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:51:10,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894936069] [2020-08-22 21:51:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:51:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:51:11,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:51:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:51:11,047 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:51:11,064 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:51:11,064 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:51:11,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:51:11,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:51:11 BoogieIcfgContainer [2020-08-22 21:51:11,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:51:11,087 INFO L168 Benchmark]: Toolchain (without parser) took 749.98 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 104.2 MB in the beginning and 159.7 MB in the end (delta: -55.4 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:11,088 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:51:11,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.44 ms. Allocated memory is still 139.5 MB. Free memory was 103.8 MB in the beginning and 94.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:11,091 INFO L168 Benchmark]: Boogie Preprocessor took 22.70 ms. Allocated memory is still 139.5 MB. Free memory was 94.7 MB in the beginning and 93.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:11,092 INFO L168 Benchmark]: RCFGBuilder took 276.36 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.5 MB in the beginning and 172.6 MB in the end (delta: -79.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:11,094 INFO L168 Benchmark]: TraceAbstraction took 224.04 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 159.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:11,100 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 222.44 ms. Allocated memory is still 139.5 MB. Free memory was 103.8 MB in the beginning and 94.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.70 ms. Allocated memory is still 139.5 MB. Free memory was 94.7 MB in the beginning and 93.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 276.36 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 93.5 MB in the beginning and 172.6 MB in the end (delta: -79.1 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224.04 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 159.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] unsigned int plus_one = 1; VAL [plus_one=1] [L5] int minus_one = -1; VAL [minus_one=-1, plus_one=1] [L7] COND TRUE plus_one < minus_one VAL [minus_one=-1, plus_one=1] [L12] __VERIFIER_error() VAL [minus_one=-1, plus_one=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 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=15occurred 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, 8 NumberOfCodeBlocks, 8 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...