/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:48:30,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:48:30,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:48:30,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 15:48:30,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:48:30,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:48:30,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:48:30,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:48:30,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:48:30,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:48:30,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:48:30,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:48:30,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:48:30,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:48:30,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:48:30,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:48:30,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 15:48:30,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:48:30,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:48:30,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:48:30,213 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-21 15:48:30,266 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:48:30,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:48:30,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:48:30,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:48:30,271 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:48:30,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:48:30,271 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:48:30,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:48:30,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:48:30,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:48:30,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:48:30,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:48:30,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:48:30,274 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:48:30,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:48:30,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:48:30,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:48:30,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:48:30,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:48:30,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:48:30,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:48:30,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:48:30,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:48:30,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:48:30,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:48:30,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:48:30,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:48:30,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:48:30,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:48:30,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:48:30,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:48:30,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:48:30,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:48:30,744 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:48:30,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c [2021-02-21 15:48:30,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de66e44a6/b4c8595154e8453185c22e781993d05d/FLAG882f24e46 [2021-02-21 15:48:31,388 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:48:31,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-1.c [2021-02-21 15:48:31,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de66e44a6/b4c8595154e8453185c22e781993d05d/FLAG882f24e46 [2021-02-21 15:48:31,769 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de66e44a6/b4c8595154e8453185c22e781993d05d [2021-02-21 15:48:31,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:48:31,785 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:48:31,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:48:31,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:48:31,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:48:31,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:48:31" (1/1) ... [2021-02-21 15:48:31,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225a6374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:31, skipping insertion in model container [2021-02-21 15:48:31,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:48:31" (1/1) ... [2021-02-21 15:48:31,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:48:31,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:48:31,964 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-1.c[922,935] [2021-02-21 15:48:31,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:48:31,983 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:48:32,001 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-1.c[922,935] [2021-02-21 15:48:32,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:48:32,019 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:48:32,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32 WrapperNode [2021-02-21 15:48:32,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:48:32,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:48:32,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:48:32,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:48:32,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (1/1) ... [2021-02-21 15:48:32,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:48:32,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:48:32,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:48:32,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:48:32,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (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 [2021-02-21 15:48:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:48:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:48:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:48:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:48:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:48:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:48:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:48:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:48:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:48:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:48:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:48:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:48:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:48:32,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:48:32,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:48:32,572 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:48:32,572 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 15:48:32,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:48:32 BoogieIcfgContainer [2021-02-21 15:48:32,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:48:32,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:48:32,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:48:32,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:48:32,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:48:31" (1/3) ... [2021-02-21 15:48:32,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327c698e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:48:32, skipping insertion in model container [2021-02-21 15:48:32,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:48:32" (2/3) ... [2021-02-21 15:48:32,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327c698e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:48:32, skipping insertion in model container [2021-02-21 15:48:32,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:48:32" (3/3) ... [2021-02-21 15:48:32,601 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension-1.c [2021-02-21 15:48:32,620 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:48:32,632 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 15:48:32,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 15:48:32,719 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:48:32,719 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:48:32,720 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:48:32,720 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:48:32,720 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:48:32,720 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:48:32,720 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:48:32,720 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:48:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2021-02-21 15:48:32,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-02-21 15:48:32,788 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:48:32,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:48:32,790 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:48:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:48:32,796 INFO L82 PathProgramCache]: Analyzing trace with hash -2110122215, now seen corresponding path program 1 times [2021-02-21 15:48:32,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:48:32,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299692670] [2021-02-21 15:48:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:48:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:48:32,951 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:48:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:48:32,983 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:48:33,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:48:33,010 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:48:33,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:48:33,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:48:33 BoogieIcfgContainer [2021-02-21 15:48:33,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:48:33,044 INFO L168 Benchmark]: Toolchain (without parser) took 1268.66 ms. Allocated memory is still 152.0 MB. Free memory was 127.8 MB in the beginning and 124.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:33,045 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:48:33,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.66 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:33,047 INFO L168 Benchmark]: Boogie Preprocessor took 33.79 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:33,048 INFO L168 Benchmark]: RCFGBuilder took 520.89 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 104.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:48:33,049 INFO L168 Benchmark]: TraceAbstraction took 462.90 ms. Allocated memory is still 152.0 MB. Free memory was 103.9 MB in the beginning and 124.8 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:48:33,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 232.66 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.79 ms. Allocated memory is still 152.0 MB. Free memory was 117.5 MB in the beginning and 116.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 520.89 ms. Allocated memory is still 152.0 MB. Free memory was 116.1 MB in the beginning and 104.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 462.90 ms. Allocated memory is still 152.0 MB. Free memory was 103.9 MB in the beginning and 124.8 MB in the end (delta: -20.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 27]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L7] unsigned short int allbits = -1; [L8] short int signedallbits = allbits; [L9] int unsignedtosigned = allbits; [L10] unsigned int unsignedtounsigned = allbits; [L11] int signedtosigned = signedallbits; [L12] unsigned int signedtounsigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L21-L22] COND TRUE unsignedtosigned == 65535 && unsignedtounsigned == 65535 && signedtosigned == -1 && signedtounsigned == 4294967295 VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] [L27] reach_error() VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, signedtounsigned=4294967295, unsignedtosigned=65535, unsignedtounsigned=65535] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=13occurred 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...