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/loops/trex02-2.c
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-14 00:39:29,643 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-14 00:39:29,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-14 00:39:29,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-14 00:39:29,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-14 00:39:29,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-14 00:39:29,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-14 00:39:29,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-14 00:39:29,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-14 00:39:29,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-14 00:39:29,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-14 00:39:29,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-14 00:39:29,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-14 00:39:29,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-14 00:39:29,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-14 00:39:29,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-14 00:39:29,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 00:39:29,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 00:39:29,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 00:39:29,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 00:39:29,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-14 00:39:29,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-14 00:39:29,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-14 00:39:29,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-14 00:39:29,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-10-14 00:39:29,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2019-10-14 00:39:29,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2019-10-14 00:39:29,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-10-14 00:39:29,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-14 00:39:29,709 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 00:39:29,723 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-14 00:39:29,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 00:39:29,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 00:39:29,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-14 00:39:29,725 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-14 00:39:29,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 00:39:29,725 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-14 00:39:29,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-14 00:39:29,725 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-14 00:39:29,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-14 00:39:29,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 00:39:29,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 00:39:29,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 00:39:29,726 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-14 00:39:29,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-14 00:39:29,727 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-14 00:39:29,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-14 00:39:29,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 00:39:29,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-14 00:39:29,728 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-14 00:39:29,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-14 00:39:29,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 00:39:29,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 00:39:29,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 00:39:29,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 00:39:29,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-14 00:39:29,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 00:39:29,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 00:39:29,729 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 00:39:30,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 00:39:30,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 00:39:30,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 00:39:30,023 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-14 00:39:30,023 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-14 00:39:30,024 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex02-2.c
[2019-10-14 00:39:30,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1654fc2c/d530c153f7174c1ebd7995666589a728/FLAG2aaa72f5e
[2019-10-14 00:39:30,541 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-14 00:39:30,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex02-2.c
[2019-10-14 00:39:30,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1654fc2c/d530c153f7174c1ebd7995666589a728/FLAG2aaa72f5e
[2019-10-14 00:39:30,937 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1654fc2c/d530c153f7174c1ebd7995666589a728
[2019-10-14 00:39:30,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 00:39:30,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 00:39:30,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 00:39:30,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 00:39:30,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 00:39:30,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:30" (1/1) ...
[2019-10-14 00:39:30,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54268d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:30, skipping insertion in model container
[2019-10-14 00:39:30,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:30" (1/1) ...
[2019-10-14 00:39:30,967 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-14 00:39:30,984 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-14 00:39:31,195 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-14 00:39:31,201 INFO L188 MainTranslator]: Completed pre-run
[2019-10-14 00:39:31,217 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-14 00:39:31,234 INFO L192 MainTranslator]: Completed translation
[2019-10-14 00:39:31,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31 WrapperNode
[2019-10-14 00:39:31,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 00:39:31,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 00:39:31,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 00:39:31,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 00:39:31,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 00:39:31,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 00:39:31,424 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 00:39:31,425 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-14 00:39:31,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:31" (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 00:39:31,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 00:39:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 00:39:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-14 00:39:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure foo
[2019-10-14 00:39:31,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 00:39:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 00:39:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-14 00:39:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-14 00:39:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-14 00:39:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure foo
[2019-10-14 00:39:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-14 00:39:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 00:39:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 00:39:31,668 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 00:39:31,668 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-14 00:39:31,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:31 BoogieIcfgContainer
[2019-10-14 00:39:31,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 00:39:31,670 INFO L113 PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2019-10-14 00:39:31,670 INFO L271 PluginConnector]: Initializing Abstract Interpretation...
[2019-10-14 00:39:31,671 INFO L275 PluginConnector]: Abstract Interpretation initialized
[2019-10-14 00:39:31,672 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:31" (1/1) ...
[2019-10-14 00:39:31,710 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-14 00:39:31,829 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation.
[2019-10-14 00:39:31,881 INFO L263 AbstractInterpreter]: Some error location(s) were reachable
[2019-10-14 00:39:31,900 INFO L272 AbstractInterpreter]: Visited 28 different actions 30 times. Never merged. Never widened. Performed 24 root evaluator evaluations with a maximum evaluation depth of 6. Performed 24 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 2 fixpoints after 2 different actions. Largest state had 6 variables.
[2019-10-14 00:39:31,901 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2019-10-14 00:39:31,904 INFO L168 Benchmark]: Toolchain (without parser) took 952.96 ms. Allocated memory was 136.8 MB in the beginning and 205.5 MB in the end (delta: 68.7 MB). Free memory was 101.4 MB in the beginning and 164.2 MB in the end (delta: -62.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:31,905 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-14 00:39:31,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.49 ms. Allocated memory is still 136.8 MB. Free memory was 101.2 MB in the beginning and 91.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:31,908 INFO L168 Benchmark]: Boogie Preprocessor took 188.33 ms. Allocated memory was 136.8 MB in the beginning and 205.5 MB in the end (delta: 68.7 MB). Free memory was 91.9 MB in the beginning and 184.1 MB in the end (delta: -92.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:31,909 INFO L168 Benchmark]: RCFGBuilder took 245.40 ms. Allocated memory is still 205.5 MB. Free memory was 184.1 MB in the beginning and 171.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:31,910 INFO L168 Benchmark]: Abstract Interpretation took 230.42 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 164.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB.
[2019-10-14 00:39:31,915 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 136.8 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 284.49 ms. Allocated memory is still 136.8 MB. Free memory was 101.2 MB in the beginning and 91.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 188.33 ms. Allocated memory was 136.8 MB in the beginning and 205.5 MB in the end (delta: 68.7 MB). Free memory was 91.9 MB in the beginning and 184.1 MB in the end (delta: -92.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 245.40 ms. Allocated memory is still 205.5 MB. Free memory was 184.1 MB in the beginning and 171.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB.
* Abstract Interpretation took 230.42 ms. Allocated memory is still 205.5 MB. Free memory was 171.8 MB in the beginning and 164.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2:
- UnprovableResult [Line: 5]: 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 x;
[L20] x=__VERIFIER_nondet_int()
[L21] COND FALSE !(x > 0)
[L26] CALL __VERIFIER_assert(x==0)
[L4] COND TRUE !(cond)
[L5] __VERIFIER_error()
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...