/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/integerpromotion-3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:51:13,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:51:13,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:51:13,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:51:13,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:51:13,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:51:13,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:51:13,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:51:13,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:51:13,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:51:13,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:51:13,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:51:13,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:51:13,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:51:13,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:51:13,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:51:13,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:51:13,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:51:13,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:51:13,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:51:13,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:51:13,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:51:13,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:51:13,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:51:13,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:51:13,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:51:13,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:51:13,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:51:13,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:51:13,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:51:13,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:51:13,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:51:13,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:51:13,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:51:13,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:51:13,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:51:13,307 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 21:51:13,316 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:51:13,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:51:13,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:51:13,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:51:13,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:51:13,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:51:13,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:51:13,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:51:13,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:51:13,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:51:13,320 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:51:13,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:51:13,320 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:51:13,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:51:13,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:51:13,321 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:51:13,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:51:13,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:51:13,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:51:13,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:51:13,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:51:13,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:51:13,322 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 21:51:13,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:51:13,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:51:13,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:51:13,625 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:51:13,626 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:51:13,627 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/integerpromotion-3.c [2020-08-22 21:51:13,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c645a17/43c3a6c026f949f5a084bd461ca52c29/FLAG9ffe0ecc4 [2020-08-22 21:51:14,132 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:51:14,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/integerpromotion-3.c [2020-08-22 21:51:14,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c645a17/43c3a6c026f949f5a084bd461ca52c29/FLAG9ffe0ecc4 [2020-08-22 21:51:14,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82c645a17/43c3a6c026f949f5a084bd461ca52c29 [2020-08-22 21:51:14,527 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:51:14,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:51:14,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:51:14,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:51:14,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:51:14,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3213de8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14, skipping insertion in model container [2020-08-22 21:51:14,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:51:14,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:51:14,725 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:51:14,730 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:51:14,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:51:14,759 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:51:14,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14 WrapperNode [2020-08-22 21:51:14,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:51:14,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:51:14,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:51:14,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:51:14,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (1/1) ... [2020-08-22 21:51:14,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:51:14,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:51:14,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:51:14,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:51:14,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (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 21:51:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:51:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:51:14,936 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:51:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:51:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:51:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:51:14,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:51:15,079 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:51:15,080 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 21:51:15,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:51:15 BoogieIcfgContainer [2020-08-22 21:51:15,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:51:15,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:51:15,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:51:15,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:51:15,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:51:14" (1/3) ... [2020-08-22 21:51:15,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758403fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:51:15, skipping insertion in model container [2020-08-22 21:51:15,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:51:14" (2/3) ... [2020-08-22 21:51:15,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758403fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:51:15, skipping insertion in model container [2020-08-22 21:51:15,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:51:15" (3/3) ... [2020-08-22 21:51:15,091 INFO L109 eAbstractionObserver]: Analyzing ICFG integerpromotion-3.c [2020-08-22 21:51:15,102 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:51:15,107 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:51:15,117 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:51:15,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:51:15,139 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:51:15,139 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:51:15,140 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:51:15,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:51:15,140 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:51:15,140 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:51:15,140 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:51:15,153 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-08-22 21:51:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-08-22 21:51:15,162 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:51:15,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:51:15,164 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:51:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:51:15,169 INFO L82 PathProgramCache]: Analyzing trace with hash 811150295, now seen corresponding path program 1 times [2020-08-22 21:51:15,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:51:15,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473480878] [2020-08-22 21:51:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:51:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:51:15,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:51:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:51:15,261 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:51:15,274 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:51:15,275 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:51:15,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:51:15,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:51:15 BoogieIcfgContainer [2020-08-22 21:51:15,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:51:15,295 INFO L168 Benchmark]: Toolchain (without parser) took 765.80 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 102.1 MB in the beginning and 158.0 MB in the end (delta: -55.9 MB). Peak memory consumption was 6.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:15,296 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-08-22 21:51:15,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.00 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:15,298 INFO L168 Benchmark]: Boogie Preprocessor took 29.21 ms. Allocated memory is still 138.9 MB. Free memory was 92.8 MB in the beginning and 91.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:15,300 INFO L168 Benchmark]: RCFGBuilder took 293.79 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 91.1 MB in the beginning and 170.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:15,301 INFO L168 Benchmark]: TraceAbstraction took 207.73 ms. Allocated memory is still 201.3 MB. Free memory was 169.7 MB in the beginning and 158.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:51:15,305 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 120.2 MB in the beginning and 119.8 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.00 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.21 ms. Allocated memory is still 138.9 MB. Free memory was 92.8 MB in the beginning and 91.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 293.79 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 91.1 MB in the beginning and 170.6 MB in the end (delta: -79.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207.73 ms. Allocated memory is still 201.3 MB. Free memory was 169.7 MB in the beginning and 158.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseComplement at line 6. Possible FailurePath: [L5] unsigned char port = 0x5a; VAL [port=90] [L6] unsigned char result_8 = ( ~port ) >> 4; VAL [port=90, result_8=250] [L7] COND TRUE result_8 == 0xfa VAL [port=90, result_8=250] [L12] __VERIFIER_error() VAL [port=90, result_8=250] - 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...