/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/signextension-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 04:48:07,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 04:48:07,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 04:48:07,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 04:48:07,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 04:48:07,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 04:48:07,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 04:48:07,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 04:48:07,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 04:48:07,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 04:48:07,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 04:48:07,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 04:48:07,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 04:48:07,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 04:48:07,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 04:48:07,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 04:48:07,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 04:48:07,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 04:48:07,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 04:48:07,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 04:48:07,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 04:48:07,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 04:48:07,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 04:48:07,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 04:48:07,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 04:48:07,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 04:48:07,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 04:48:07,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 04:48:07,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 04:48:07,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 04:48:07,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 04:48:07,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 04:48:07,724 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 04:48:07,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 04:48:07,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 04:48:07,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 04:48:07,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 04:48:07,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 04:48:07,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 04:48:07,726 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 04:48:07,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 04:48:07,727 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 04:48:07,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 04:48:07,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 04:48:07,728 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 04:48:07,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 04:48:07,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 04:48:07,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 04:48:07,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 04:48:07,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 04:48:07,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 04:48:07,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 04:48:08,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 04:48:08,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 04:48:08,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 04:48:08,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 04:48:08,157 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 04:48:08,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-11-07 04:48:08,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed27ab95c/728de5cd6d13458ebe141136e7ef3fdb/FLAG552515526 [2020-11-07 04:48:08,894 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 04:48:08,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/signextension-1.c [2020-11-07 04:48:08,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed27ab95c/728de5cd6d13458ebe141136e7ef3fdb/FLAG552515526 [2020-11-07 04:48:09,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed27ab95c/728de5cd6d13458ebe141136e7ef3fdb [2020-11-07 04:48:09,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 04:48:09,279 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 04:48:09,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 04:48:09,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 04:48:09,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 04:48:09,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786f2e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09, skipping insertion in model container [2020-11-07 04:48:09,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 04:48:09,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 04:48:09,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:48:09,495 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 04:48:09,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 04:48:09,529 INFO L208 MainTranslator]: Completed translation [2020-11-07 04:48:09,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09 WrapperNode [2020-11-07 04:48:09,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 04:48:09,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 04:48:09,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 04:48:09,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 04:48:09,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (1/1) ... [2020-11-07 04:48:09,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 04:48:09,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 04:48:09,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 04:48:09,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 04:48:09,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (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 [2020-11-07 04:48:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 04:48:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 04:48:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 04:48:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 04:48:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 04:48:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 04:48:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 04:48:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 04:48:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 04:48:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 04:48:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 04:48:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 04:48:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 04:48:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 04:48:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 04:48:10,070 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 04:48:10,071 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 04:48:10,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:48:10 BoogieIcfgContainer [2020-11-07 04:48:10,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 04:48:10,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 04:48:10,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 04:48:10,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 04:48:10,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:48:09" (1/3) ... [2020-11-07 04:48:10,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480613cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:48:10, skipping insertion in model container [2020-11-07 04:48:10,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:48:09" (2/3) ... [2020-11-07 04:48:10,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480613cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:48:10, skipping insertion in model container [2020-11-07 04:48:10,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:48:10" (3/3) ... [2020-11-07 04:48:10,092 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension-1.c [2020-11-07 04:48:10,109 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 04:48:10,113 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 04:48:10,127 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 04:48:10,162 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 04:48:10,163 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 04:48:10,163 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 04:48:10,163 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 04:48:10,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 04:48:10,163 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 04:48:10,163 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 04:48:10,164 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 04:48:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-07 04:48:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-07 04:48:10,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 04:48:10,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 04:48:10,235 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 04:48:10,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 04:48:10,244 INFO L82 PathProgramCache]: Analyzing trace with hash 822971143, now seen corresponding path program 1 times [2020-11-07 04:48:10,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 04:48:10,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064429144] [2020-11-07 04:48:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 04:48:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:48:10,475 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:48:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 04:48:10,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 04:48:10,581 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 04:48:10,582 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 04:48:10,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 04:48:10,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:48:10 BoogieIcfgContainer [2020-11-07 04:48:10,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 04:48:10,621 INFO L168 Benchmark]: Toolchain (without parser) took 1345.77 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 124.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.8 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:10,622 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.2 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:48:10,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.73 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:10,625 INFO L168 Benchmark]: Boogie Preprocessor took 30.49 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 116.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:10,626 INFO L168 Benchmark]: RCFGBuilder took 513.77 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 103.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-11-07 04:48:10,627 INFO L168 Benchmark]: TraceAbstraction took 538.79 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 124.1 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 04:48:10,632 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 151.0 MB. Free memory was 124.3 MB in the beginning and 124.2 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 248.73 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.49 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 116.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 513.77 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 103.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 538.79 ms. Allocated memory is still 151.0 MB. Free memory was 103.4 MB in the beginning and 124.1 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] unsigned short int allbits = -1; VAL [allbits=65535] [L8] short int signedallbits = allbits; VAL [allbits=65535, signedallbits=-1] [L9] int unsignedtosigned = allbits; VAL [allbits=65535, signedallbits=-1, unsignedtosigned=65535] [L10] unsigned int unsignedtounsigned = allbits; VAL [allbits=65535, signedallbits=-1, unsignedtosigned=65535, unsignedtounsigned=65535] [L11] int signedtosigned = signedallbits; VAL [allbits=65535, signedallbits=-1, signedtosigned=-1, unsignedtosigned=65535, unsignedtounsigned=65535] [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] CALL reach_error() [L3] __assert_fail("0", "signextension-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=31occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 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...