/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/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:57:06,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:57:06,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:57:07,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:57:07,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:57:07,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:57:07,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:57:07,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:57:07,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:57:07,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:57:07,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:57:07,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 06:57:07,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 06:57:07,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 06:57:07,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 06:57:07,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 06:57:07,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 06:57:07,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 06:57:07,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 06:57:07,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 06:57:07,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 06:57:07,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 06:57:07,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 06:57:07,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 06:57:07,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 06:57:07,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 06:57:07,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 06:57:07,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 06:57:07,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 06:57:07,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 06:57:07,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 06:57:07,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 06:57:07,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 06:57:07,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 06:57:07,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 06:57:07,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 06:57:07,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 06:57:07,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 06:57:07,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 06:57:07,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 06:57:07,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 06:57:07,042 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 [2019-11-07 06:57:07,065 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:57:07,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:57:07,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:57:07,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:57:07,067 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:57:07,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:57:07,067 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:57:07,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:57:07,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:57:07,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:57:07,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:57:07,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:57:07,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:57:07,069 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:57:07,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:57:07,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:57:07,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:57:07,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:57:07,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:57:07,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:57:07,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:57:07,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:57:07,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:57:07,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:57:07,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:57:07,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:57:07,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:57:07,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:57:07,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 06:57:07,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:57:07,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:57:07,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:57:07,378 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:57:07,378 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:57:07,382 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-11-07 06:57:07,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33b5aa49/38185cad72da471089919ab9f5b289b7/FLAGc1b42f85c [2019-11-07 06:57:07,828 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:57:07,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_2-2.c [2019-11-07 06:57:07,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33b5aa49/38185cad72da471089919ab9f5b289b7/FLAGc1b42f85c [2019-11-07 06:57:08,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d33b5aa49/38185cad72da471089919ab9f5b289b7 [2019-11-07 06:57:08,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:57:08,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:57:08,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:08,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:57:08,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:57:08,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcc3485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08, skipping insertion in model container [2019-11-07 06:57:08,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,265 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:57:08,281 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:57:08,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:08,465 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:57:08,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:57:08,500 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:57:08,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08 WrapperNode [2019-11-07 06:57:08,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:57:08,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:57:08,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:57:08,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:57:08,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:57:08,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:57:08,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:57:08,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:57:08,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:57:08" (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 [2019-11-07 06:57:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:57:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:57:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:57:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:57:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:57:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 06:57:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:57:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:57:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:57:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:57:08,842 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:57:08,842 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:57:08,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:08 BoogieIcfgContainer [2019-11-07 06:57:08,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:57:08,844 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:57:08,845 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:57:08,845 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:57:08,846 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:57:08" (1/1) ... [2019-11-07 06:57:08,874 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:57:08,956 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-11-07 06:57:09,022 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:57:09,044 INFO L272 AbstractInterpreter]: Visited 19 different actions 19 times. Never merged. Never widened. Performed 12 root evaluator evaluations with a maximum evaluation depth of 7. Performed 12 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 4 variables. [2019-11-07 06:57:09,044 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:57:09,049 INFO L168 Benchmark]: Toolchain (without parser) took 796.50 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 163.3 MB in the end (delta: -60.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 06:57:09,050 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:57:09,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.88 ms. Allocated memory is still 145.8 MB. Free memory was 102.2 MB in the beginning and 93.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:09,055 INFO L168 Benchmark]: Boogie Preprocessor took 126.79 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 93.2 MB in the beginning and 181.8 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:09,057 INFO L168 Benchmark]: RCFGBuilder took 215.26 ms. Allocated memory is still 202.4 MB. Free memory was 181.8 MB in the beginning and 170.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:09,058 INFO L168 Benchmark]: Abstract Interpretation took 199.89 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 163.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. [2019-11-07 06:57:09,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.88 ms. Allocated memory is still 145.8 MB. Free memory was 102.2 MB in the beginning and 93.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.79 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 93.2 MB in the beginning and 181.8 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 215.26 ms. Allocated memory is still 202.4 MB. Free memory was 181.8 MB in the beginning and 170.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 199.89 ms. Allocated memory is still 202.4 MB. Free memory was 170.8 MB in the beginning and 163.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L12] unsigned int x = __VERIFIER_nondet_uint(); [L14] COND FALSE !(x < 0x0fffffff) [L18] CALL __VERIFIER_assert(x > 0x0fffffff) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...