/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 --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-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:37:02,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:37:02,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:37:02,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 22:37:02,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:37:02,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:37:02,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:37:02,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:37:02,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:37:02,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:37:02,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:37:02,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:37:02,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:37:02,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:37:02,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:37:02,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:37:02,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 22:37:02,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:37:02,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:37:02,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:37:02,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:37:02,985 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:37:02,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:37:02,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:37:02,990 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:37:02,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:37:02,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:37:02,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:37:02,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:37:02,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:37:02,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:37:02,993 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:37:02,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:37:02,993 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:37:02,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:37:02,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:37:02,994 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:37:02,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:37:02,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:37:02,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:37:02,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:37:02,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:37:02,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:37:02,995 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:37:03,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:37:03,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:37:03,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:37:03,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:37:03,454 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:37:03,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/integerpromotion-2.c [2021-02-23 22:37:03,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583353dc2/c05b2aaa239e42b28d287c728370e09e/FLAG7d5de932e [2021-02-23 22:37:04,148 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:37:04,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/integerpromotion-2.c [2021-02-23 22:37:04,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583353dc2/c05b2aaa239e42b28d287c728370e09e/FLAG7d5de932e [2021-02-23 22:37:04,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583353dc2/c05b2aaa239e42b28d287c728370e09e [2021-02-23 22:37:04,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:37:04,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:37:04,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:37:04,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:37:04,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:37:04,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa75152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04, skipping insertion in model container [2021-02-23 22:37:04,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:37:04,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:37:04,725 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/integerpromotion-2.c[423,436] [2021-02-23 22:37:04,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:37:04,740 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:37:04,756 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/integerpromotion-2.c[423,436] [2021-02-23 22:37:04,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:37:04,774 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:37:04,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04 WrapperNode [2021-02-23 22:37:04,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:37:04,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:37:04,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:37:04,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:37:04,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (1/1) ... [2021-02-23 22:37:04,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:37:04,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:37:04,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:37:04,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:37:04,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (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 [2021-02-23 22:37:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:37:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:37:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:37:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:37:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:37:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:37:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:37:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:37:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:37:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:37:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:37:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:37:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:37:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:37:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:37:05,265 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:37:05,265 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 22:37:05,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:37:05 BoogieIcfgContainer [2021-02-23 22:37:05,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:37:05,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:37:05,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:37:05,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:37:05,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:37:04" (1/3) ... [2021-02-23 22:37:05,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10838213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:37:05, skipping insertion in model container [2021-02-23 22:37:05,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:37:04" (2/3) ... [2021-02-23 22:37:05,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10838213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:37:05, skipping insertion in model container [2021-02-23 22:37:05,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:37:05" (3/3) ... [2021-02-23 22:37:05,279 INFO L111 eAbstractionObserver]: Analyzing ICFG integerpromotion-2.c [2021-02-23 22:37:05,288 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:37:05,293 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:37:05,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:37:05,341 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:37:05,341 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:37:05,342 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:37:05,342 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:37:05,342 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:37:05,342 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:37:05,342 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:37:05,342 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:37:05,418 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-02-23 22:37:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-23 22:37:05,455 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:37:05,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 22:37:05,458 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:37:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:37:05,472 INFO L82 PathProgramCache]: Analyzing trace with hash 196239954, now seen corresponding path program 1 times [2021-02-23 22:37:05,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:37:05,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490552131] [2021-02-23 22:37:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:37:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:37:05,624 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:37:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:37:05,664 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:37:05,717 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:37:05,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:37:05,719 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:37:05,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:37:05 BoogieIcfgContainer [2021-02-23 22:37:05,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:37:05,774 INFO L168 Benchmark]: Toolchain (without parser) took 1234.62 ms. Allocated memory is still 154.1 MB. Free memory was 129.5 MB in the beginning and 126.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:05,777 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 128.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:37:05,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.04 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 118.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:05,783 INFO L168 Benchmark]: Boogie Preprocessor took 36.27 ms. Allocated memory is still 154.1 MB. Free memory was 118.7 MB in the beginning and 117.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:05,784 INFO L168 Benchmark]: RCFGBuilder took 454.33 ms. Allocated memory is still 154.1 MB. Free memory was 117.4 MB in the beginning and 105.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 22:37:05,786 INFO L168 Benchmark]: TraceAbstraction took 498.96 ms. Allocated memory is still 154.1 MB. Free memory was 104.6 MB in the beginning and 126.9 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:37:05,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 154.1 MB. Free memory is still 128.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 228.04 ms. Allocated memory is still 154.1 MB. Free memory was 128.3 MB in the beginning and 118.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.27 ms. Allocated memory is still 154.1 MB. Free memory was 118.7 MB in the beginning and 117.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 454.33 ms. Allocated memory is still 154.1 MB. Free memory was 117.4 MB in the beginning and 105.0 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 498.96 ms. Allocated memory is still 154.1 MB. Free memory was 104.6 MB in the beginning and 126.9 MB in the end (delta: -22.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 8. Possible FailurePath: [L7] unsigned char port = 0x5a; VAL [port=90] [L8] unsigned char result_8 = ( ~port ) >> 4; VAL [port=90, result_8=0] [L9] COND TRUE result_8 != 0xfa VAL [port=90, result_8=0] [L14] reach_error() VAL [port=90, result_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 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=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...