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/prod4br.c
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-14 00:39:39,883 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2019-10-14 00:39:39,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-10-14 00:39:39,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
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[2019-10-14 00:39:39,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 00:39:39,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 00:39:39,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
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[2019-10-14 00:39:39,950 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
[2019-10-14 00:39:39,965 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-14 00:39:39,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 00:39:39,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 00:39:39,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-14 00:39:39,967 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-14 00:39:39,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 00:39:39,968 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-14 00:39:39,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-14 00:39:39,968 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-14 00:39:39,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-14 00:39:39,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 00:39:39,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 00:39:39,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 00:39:39,969 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-14 00:39:39,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-14 00:39:39,970 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-14 00:39:39,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-14 00:39:39,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 00:39:39,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-14 00:39:39,970 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-14 00:39:39,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-14 00:39:39,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 00:39:39,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 00:39:39,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 00:39:39,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 00:39:39,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-14 00:39:39,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 00:39:39,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 00:39:39,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain
[2019-10-14 00:39:40,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 00:39:40,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 00:39:40,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 00:39:40,311 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-14 00:39:40,311 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-14 00:39:40,312 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/prod4br.c
[2019-10-14 00:39:40,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9c7aa2b/a272e73f351f42a38e388b6a86d19357/FLAGcdf3a2180
[2019-10-14 00:39:40,848 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-14 00:39:40,851 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/prod4br.c
[2019-10-14 00:39:40,860 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9c7aa2b/a272e73f351f42a38e388b6a86d19357/FLAGcdf3a2180
[2019-10-14 00:39:41,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9c7aa2b/a272e73f351f42a38e388b6a86d19357
[2019-10-14 00:39:41,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 00:39:41,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 00:39:41,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 00:39:41,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 00:39:41,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 00:39:41,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32777701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41, skipping insertion in model container
[2019-10-14 00:39:41,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,251 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-14 00:39:41,268 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-14 00:39:41,459 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-14 00:39:41,463 INFO L188 MainTranslator]: Completed pre-run
[2019-10-14 00:39:41,481 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-14 00:39:41,494 INFO L192 MainTranslator]: Completed translation
[2019-10-14 00:39:41,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41 WrapperNode
[2019-10-14 00:39:41,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 00:39:41,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 00:39:41,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 00:39:41,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 00:39:41,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 00:39:41,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 00:39:41,608 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 00:39:41,609 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-14 00:39:41,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:41" (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
[2019-10-14 00:39:41,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 00:39:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 00:39:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-14 00:39:41,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 00:39:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 00:39:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-14 00:39:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 00:39:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-14 00:39:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-14 00:39:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 00:39:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 00:39:41,894 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 00:39:41,894 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-14 00:39:41,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:41 BoogieIcfgContainer
[2019-10-14 00:39:41,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 00:39:41,896 INFO L113 PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2019-10-14 00:39:41,897 INFO L271 PluginConnector]: Initializing Abstract Interpretation...
[2019-10-14 00:39:41,897 INFO L275 PluginConnector]: Abstract Interpretation initialized
[2019-10-14 00:39:41,898 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:41" (1/1) ...
[2019-10-14 00:39:41,937 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-14 00:39:42,100 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation.
[2019-10-14 00:39:45,325 INFO L263 AbstractInterpreter]: Some error location(s) were reachable
[2019-10-14 00:39:45,346 INFO L272 AbstractInterpreter]: Visited 32 different actions 421 times. Merged at 14 different actions 107 times. Widened at 3 different actions 6 times. Performed 748 root evaluator evaluations with a maximum evaluation depth of 12. Performed 748 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 43 fixpoints after 5 different actions. Largest state had 9 variables.
[2019-10-14 00:39:45,346 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2019-10-14 00:39:45,351 INFO L168 Benchmark]: Toolchain (without parser) took 4114.72 ms. Allocated memory was 137.9 MB in the beginning and 347.6 MB in the end (delta: 209.7 MB). Free memory was 103.0 MB in the beginning and 267.8 MB in the end (delta: -164.8 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:45,353 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.2 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2019-10-14 00:39:45,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.00 ms. Allocated memory is still 137.9 MB. Free memory was 102.8 MB in the beginning and 92.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:45,356 INFO L168 Benchmark]: Boogie Preprocessor took 112.63 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.6 MB in the beginning and 179.5 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:45,360 INFO L168 Benchmark]: RCFGBuilder took 287.86 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 166.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:45,361 INFO L168 Benchmark]: Abstract Interpretation took 3450.18 ms. Allocated memory was 201.3 MB in the beginning and 347.6 MB in the end (delta: 146.3 MB). Free memory was 166.5 MB in the beginning and 267.8 MB in the end (delta: -101.3 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:45,372 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.2 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 260.00 ms. Allocated memory is still 137.9 MB. Free memory was 102.8 MB in the beginning and 92.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 112.63 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 92.6 MB in the beginning and 179.5 MB in the end (delta: -86.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 287.86 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 166.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB.
* Abstract Interpretation took 3450.18 ms. Allocated memory was 201.3 MB in the beginning and 347.6 MB in the end (delta: 146.3 MB). Free memory was 166.5 MB in the beginning and 267.8 MB in the end (delta: -101.3 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2:
- UnprovableResult [Line: 9]: 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:
[L15] int x, y;
[L16] int a, b, p, q;
[L18] x = __VERIFIER_nondet_int()
[L19] y = __VERIFIER_nondet_int()
[L22] a = x
[L23] b = y
[L24] p = 1
[L25] q = 0
[L27] COND TRUE 1
[L28] CALL __VERIFIER_assert(q + a * b * p == x * y)
[L7] COND TRUE !(cond)
[L9] __VERIFIER_error()
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...