/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/nla-digbench/ps2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 06:58:50,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 06:58:50,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 06:58:50,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 06:58:50,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 06:58:50,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 06:58:50,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 06:58:50,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 06:58:50,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 06:58:50,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 06:58:50,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 06:58:50,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 06:58:50,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 06:58:50,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 06:58:50,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 06:58:50,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 06:58:50,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 06:58:50,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 06:58:50,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 06:58:50,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 06:58:50,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 06:58:50,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 06:58:50,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 06:58:50,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 06:58:51,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 06:58:51,011 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 06:58:51,044 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 06:58:51,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 06:58:51,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 06:58:51,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 06:58:51,048 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 06:58:51,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 06:58:51,049 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 06:58:51,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 06:58:51,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 06:58:51,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 06:58:51,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 06:58:51,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 06:58:51,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 06:58:51,050 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 06:58:51,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 06:58:51,050 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 06:58:51,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 06:58:51,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 06:58:51,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 06:58:51,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 06:58:51,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 06:58:51,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 06:58:51,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 06:58:51,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 06:58:51,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 06:58:51,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 06:58:51,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 06:58:51,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 06:58:51,053 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 06:58:51,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 06:58:51,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 06:58:51,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 06:58:51,369 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 06:58:51,370 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 06:58:51,371 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/ps2.c [2019-11-07 06:58:51,440 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e264b370e/807bee00e21b45e7a4bb130e19a408b7/FLAG0b31a3804 [2019-11-07 06:58:51,882 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 06:58:51,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/ps2.c [2019-11-07 06:58:51,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e264b370e/807bee00e21b45e7a4bb130e19a408b7/FLAG0b31a3804 [2019-11-07 06:58:52,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e264b370e/807bee00e21b45e7a4bb130e19a408b7 [2019-11-07 06:58:52,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 06:58:52,284 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 06:58:52,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:52,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 06:58:52,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 06:58:52,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e5aa86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52, skipping insertion in model container [2019-11-07 06:58:52,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,299 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 06:58:52,316 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 06:58:52,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:52,501 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 06:58:52,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 06:58:52,526 INFO L192 MainTranslator]: Completed translation [2019-11-07 06:58:52,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52 WrapperNode [2019-11-07 06:58:52,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 06:58:52,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 06:58:52,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 06:58:52,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 06:58:52,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 06:58:52,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 06:58:52,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 06:58:52,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 06:58:52,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:58:52" (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 06:58:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 06:58:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 06:58:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-07 06:58:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 06:58:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 06:58:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 06:58:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 06:58:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 06:58:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 06:58:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 06:58:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 06:58:52,843 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 06:58:52,844 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 06:58:52,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:52 BoogieIcfgContainer [2019-11-07 06:58:52,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 06:58:52,846 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 06:58:52,846 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 06:58:52,846 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 06:58:52,847 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:58:52" (1/1) ... [2019-11-07 06:58:52,872 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 06:58:52,985 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-11-07 06:58:53,009 INFO L272 AbstractInterpreter]: Visited 16 different actions 16 times. Never merged. Never widened. Performed 13 root evaluator evaluations with a maximum evaluation depth of 9. Performed 13 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Never found a fixpoint. Largest state had 6 variables. [2019-11-07 06:58:53,009 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-11-07 06:58:53,012 INFO L168 Benchmark]: Toolchain (without parser) took 727.50 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 105.5 MB in the beginning and 163.1 MB in the end (delta: -57.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 06:58:53,013 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 06:58:53,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.17 ms. Allocated memory is still 147.3 MB. Free memory was 105.3 MB in the beginning and 95.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:53,016 INFO L168 Benchmark]: Boogie Preprocessor took 112.61 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 95.8 MB in the beginning and 182.4 MB in the end (delta: -86.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:53,016 INFO L168 Benchmark]: RCFGBuilder took 205.20 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 171.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:53,017 INFO L168 Benchmark]: Abstract Interpretation took 163.66 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 163.1 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2019-11-07 06:58:53,022 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 242.17 ms. Allocated memory is still 147.3 MB. Free memory was 105.3 MB in the beginning and 95.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.61 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 95.8 MB in the beginning and 182.4 MB in the end (delta: -86.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 205.20 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 171.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 163.66 ms. Allocated memory is still 203.9 MB. Free memory was 171.4 MB in the beginning and 163.1 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 7]: 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: [L13] int k, y, x, c; [L14] k = __VERIFIER_nondet_int() [L16] y = 0 [L17] x = 0 [L18] c = 0 [L20] COND TRUE 1 [L21] CALL __VERIFIER_assert((y * y) - 2 * x + y == 0) [L5] COND TRUE !(cond) [L7] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...