/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 15:22:38,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 15:22:38,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 15:22:38,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 15:22:38,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 15:22:38,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 15:22:38,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 15:22:38,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 15:22:38,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 15:22:38,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 15:22:38,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 15:22:38,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 15:22:38,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 15:22:38,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 15:22:38,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 15:22:38,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 15:22:38,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 15:22:38,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 15:22:38,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 15:22:38,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 15:22:38,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 15:22:38,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 15:22:38,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 15:22:38,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 15:22:38,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 15:22:38,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 15:22:38,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 15:22:38,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 15:22:38,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 15:22:38,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 15:22:38,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 15:22:38,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 15:22:38,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 15:22:38,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 15:22:38,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 15:22:38,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 15:22:38,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 15:22:38,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 15:22:38,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 15:22:38,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 15:22:38,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 15:22:38,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 15:22:38,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 15:22:38,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 15:22:38,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 15:22:38,594 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 15:22:38,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 15:22:38,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 15:22:38,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 15:22:38,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 15:22:38,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 15:22:38,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 15:22:38,596 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 15:22:38,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 15:22:38,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 15:22:38,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 15:22:38,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 15:22:38,598 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 15:22:38,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 15:22:38,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 15:22:38,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 15:22:38,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 15:22:38,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 15:22:38,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 15:22:38,600 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 [2020-07-07 15:22:38,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 15:22:38,911 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 15:22:38,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 15:22:38,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 15:22:38,917 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 15:22:38,917 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-07-07 15:22:38,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a00eb98a2/28242089288e4491b0f4ae4b2e83c60f/FLAGf262ba28e [2020-07-07 15:22:39,434 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 15:22:39,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-07-07 15:22:39,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a00eb98a2/28242089288e4491b0f4ae4b2e83c60f/FLAGf262ba28e [2020-07-07 15:22:39,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a00eb98a2/28242089288e4491b0f4ae4b2e83c60f [2020-07-07 15:22:39,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 15:22:39,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 15:22:39,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 15:22:39,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 15:22:39,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 15:22:39,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:22:39" (1/1) ... [2020-07-07 15:22:39,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca83af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:39, skipping insertion in model container [2020-07-07 15:22:39,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 03:22:39" (1/1) ... [2020-07-07 15:22:39,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 15:22:39,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 15:22:40,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:22:40,058 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 15:22:40,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 15:22:40,085 INFO L208 MainTranslator]: Completed translation [2020-07-07 15:22:40,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40 WrapperNode [2020-07-07 15:22:40,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 15:22:40,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 15:22:40,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 15:22:40,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 15:22:40,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (1/1) ... [2020-07-07 15:22:40,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 15:22:40,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 15:22:40,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 15:22:40,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 15:22:40,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (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 15:22:40,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 15:22:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 15:22:40,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 15:22:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 15:22:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 15:22:40,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 15:22:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 15:22:40,443 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 15:22:40,444 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 15:22:40,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:22:40 BoogieIcfgContainer [2020-07-07 15:22:40,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 15:22:40,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 15:22:40,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 15:22:40,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 15:22:40,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 03:22:39" (1/3) ... [2020-07-07 15:22:40,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a682a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:22:40, skipping insertion in model container [2020-07-07 15:22:40,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 03:22:40" (2/3) ... [2020-07-07 15:22:40,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a682a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 03:22:40, skipping insertion in model container [2020-07-07 15:22:40,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 03:22:40" (3/3) ... [2020-07-07 15:22:40,455 INFO L109 eAbstractionObserver]: Analyzing ICFG signextension-1.c [2020-07-07 15:22:40,467 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 15:22:40,475 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 15:22:40,489 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 15:22:40,512 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 15:22:40,512 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 15:22:40,512 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-07 15:22:40,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 15:22:40,512 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 15:22:40,513 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 15:22:40,513 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 15:22:40,513 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 15:22:40,525 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-07 15:22:40,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-07 15:22:40,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 15:22:40,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 15:22:40,536 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 15:22:40,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 15:22:40,543 INFO L82 PathProgramCache]: Analyzing trace with hash 49487317, now seen corresponding path program 1 times [2020-07-07 15:22:40,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 15:22:40,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977531071] [2020-07-07 15:22:40,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 15:22:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:22:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 15:22:40,599 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 15:22:40,600 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 15:22:40,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 03:22:40 BoogieIcfgContainer [2020-07-07 15:22:40,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 15:22:40,645 INFO L168 Benchmark]: Toolchain (without parser) took 814.48 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 102.8 MB in the beginning and 160.0 MB in the end (delta: -57.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2020-07-07 15:22:40,647 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 15:22:40,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.74 ms. Allocated memory is still 144.2 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-07 15:22:40,649 INFO L168 Benchmark]: Boogie Preprocessor took 22.50 ms. Allocated memory is still 144.2 MB. Free memory was 93.2 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-07 15:22:40,651 INFO L168 Benchmark]: RCFGBuilder took 338.50 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 91.8 MB in the beginning and 171.4 MB in the end (delta: -79.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-07 15:22:40,652 INFO L168 Benchmark]: TraceAbstraction took 194.07 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 160.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-07-07 15:22:40,659 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.2 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 254.74 ms. Allocated memory is still 144.2 MB. Free memory was 102.6 MB in the beginning and 93.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.50 ms. Allocated memory is still 144.2 MB. Free memory was 93.2 MB in the beginning and 91.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 338.50 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 91.8 MB in the beginning and 171.4 MB in the end (delta: -79.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194.07 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 160.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L5] unsigned short int allbits = -1; VAL [allbits=65535] [L6] short int signedallbits = allbits; VAL [allbits=65535, signedallbits=-1] [L7] int unsignedtosigned = allbits; VAL [allbits=65535, signedallbits=-1, unsignedtosigned=65535] [L8] unsigned int unsignedtounsigned = allbits; VAL [allbits=65535, signedallbits=-1, unsignedtosigned=65535, unsignedtounsigned=65535] [L9] int signedtosigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, unsignedtosigned=65535, unsignedtounsigned=65535] [L10] unsigned int signedtounsigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L19-L20] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L25] __VERIFIER_error() VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.0s, 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=19occurred 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, 12 NumberOfCodeBlocks, 12 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...