/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_float_ptr.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-d623d84
[2020-07-21 00:30:26,814 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-21 00:30:26,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-21 00:30:26,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-21 00:30:26,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-21 00:30:26,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-21 00:30:26,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-21 00:30:26,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-21 00:30:26,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-21 00:30:26,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-21 00:30:26,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-07-21 00:30:26,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-21 00:30:26,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-21 00:30:26,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-21 00:30:26,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-21 00:30:26,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-21 00:30:26,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-21 00:30:26,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-21 00:30:26,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-21 00:30:26,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-21 00:30:26,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-21 00:30:26,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-21 00:30:26,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-21 00:30:26,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-21 00:30:26,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-21 00:30:26,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-21 00:30:26,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-21 00:30:26,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-21 00:30:26,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-21 00:30:26,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-21 00:30:26,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-21 00:30:26,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-21 00:30:26,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-21 00:30:26,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-21 00:30:26,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-21 00:30:26,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-21 00:30:26,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-21 00:30:26,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-21 00:30:26,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-21 00:30:26,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-21 00:30:26,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-21 00:30:26,865 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
[2020-07-21 00:30:26,884 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-21 00:30:26,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-21 00:30:26,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-21 00:30:26,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-07-21 00:30:26,886 INFO L138 SettingsManager]: * Use SBE=true
[2020-07-21 00:30:26,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-21 00:30:26,886 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-21 00:30:26,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-21 00:30:26,887 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-21 00:30:26,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-21 00:30:26,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-21 00:30:26,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-21 00:30:26,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-21 00:30:26,888 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-21 00:30:26,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-21 00:30:26,888 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-21 00:30:26,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-21 00:30:26,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-21 00:30:26,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-07-21 00:30:26,889 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-21 00:30:26,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-21 00:30:26,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-21 00:30:26,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-21 00:30:26,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-07-21 00:30:26,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-21 00:30:26,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-07-21 00:30:26,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 00:30:26,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-21 00:30:26,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-07-21 00:30:26,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-21 00:30:27,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-21 00:30:27,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-21 00:30:27,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-21 00:30:27,214 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-21 00:30:27,215 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-21 00:30:27,216 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_float_ptr.c
[2020-07-21 00:30:27,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ee1cded/a50e8c78a7ef4094bf249cb65b251ee8/FLAGe0fb45e8b
[2020-07-21 00:30:27,716 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-21 00:30:27,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_float_ptr.c
[2020-07-21 00:30:27,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ee1cded/a50e8c78a7ef4094bf249cb65b251ee8/FLAGe0fb45e8b
[2020-07-21 00:30:28,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2ee1cded/a50e8c78a7ef4094bf249cb65b251ee8
[2020-07-21 00:30:28,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-21 00:30:28,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-21 00:30:28,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-21 00:30:28,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-21 00:30:28,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-21 00:30:28,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476603ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28, skipping insertion in model container
[2020-07-21 00:30:28,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-21 00:30:28,085 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-21 00:30:28,263 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-21 00:30:28,274 INFO L203 MainTranslator]: Completed pre-run
[2020-07-21 00:30:28,294 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-21 00:30:28,310 INFO L208 MainTranslator]: Completed translation
[2020-07-21 00:30:28,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28 WrapperNode
[2020-07-21 00:30:28,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-21 00:30:28,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-21 00:30:28,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-21 00:30:28,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-21 00:30:28,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (1/1) ...
[2020-07-21 00:30:28,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-21 00:30:28,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-21 00:30:28,432 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-21 00:30:28,432 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-21 00:30:28,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (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
[2020-07-21 00:30:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-21 00:30:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-21 00:30:28,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-21 00:30:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cast
[2020-07-21 00:30:28,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-21 00:30:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-21 00:30:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2020-07-21 00:30:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-21 00:30:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure cast
[2020-07-21 00:30:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-21 00:30:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-07-21 00:30:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-07-21 00:30:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-21 00:30:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-07-21 00:30:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-07-21 00:30:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-21 00:30:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-21 00:30:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-21 00:30:28,784 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-21 00:30:28,785 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-07-21 00:30:28,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:30:28 BoogieIcfgContainer
[2020-07-21 00:30:28,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-21 00:30:28,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-21 00:30:28,790 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-21 00:30:28,793 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-21 00:30:28,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:30:28" (1/3) ...
[2020-07-21 00:30:28,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae49da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:30:28, skipping insertion in model container
[2020-07-21 00:30:28,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:30:28" (2/3) ...
[2020-07-21 00:30:28,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae49da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:30:28, skipping insertion in model container
[2020-07-21 00:30:28,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:30:28" (3/3) ...
[2020-07-21 00:30:28,797 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_float_ptr.c
[2020-07-21 00:30:28,809 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-21 00:30:28,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-21 00:30:28,846 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-21 00:30:28,889 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-21 00:30:28,890 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-21 00:30:28,890 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-21 00:30:28,890 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-21 00:30:28,890 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-21 00:30:28,891 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-21 00:30:28,891 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-21 00:30:28,891 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-21 00:30:28,913 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2020-07-21 00:30:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2020-07-21 00:30:28,921 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-21 00:30:28,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-07-21 00:30:28,922 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-21 00:30:28,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-21 00:30:28,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1713573888, now seen corresponding path program 1 times
[2020-07-21 00:30:28,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-21 00:30:28,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018583590]
[2020-07-21 00:30:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions)
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 00:30:29,085 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s)
[2020-07-21 00:30:29,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat
[2020-07-21 00:30:29,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-21 00:30:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-21 00:30:29,110 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-07-21 00:30:29,137 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-07-21 00:30:29,138 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-07-21 00:30:29,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-21 00:30:29,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:30:29 BoogieIcfgContainer
[2020-07-21 00:30:29,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-21 00:30:29,386 INFO L168 Benchmark]: Toolchain (without parser) took 1330.88 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.6 MB in the beginning and 138.6 MB in the end (delta: -36.0 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:29,387 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory is still 120.8 MB. There was no memory consumed. Max. memory is 7.1 GB.
[2020-07-21 00:30:29,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.60 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 91.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:29,392 INFO L168 Benchmark]: Boogie Preprocessor took 119.61 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 91.7 MB in the beginning and 179.3 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:29,393 INFO L168 Benchmark]: RCFGBuilder took 357.40 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 161.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:29,394 INFO L168 Benchmark]: TraceAbstraction took 590.92 ms. Allocated memory is still 201.9 MB. Free memory was 161.5 MB in the beginning and 138.6 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB.
[2020-07-21 00:30:29,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory is still 120.8 MB. There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 257.60 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 91.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 119.61 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 91.7 MB in the beginning and 179.3 MB in the end (delta: -87.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 357.40 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 161.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 590.92 ms. Allocated memory is still 201.9 MB. Free memory was 161.5 MB in the beginning and 138.6 MB in the end (delta: 22.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 23, overapproximation of bitwiseAnd at line 11.
Possible FailurePath:
[L32] double a;
[L33] float r;
[L35] a = __VERIFIER_nondet_double()
[L36] CALL cast(a)
VAL [\old(d)=7]
[L8] double dmax;
[L9] float f;
[L11] EXPR \read(d)
VAL [\old(d)=7, \read(d)=12, d={2441:0}, dmax={2440:0}, f={2439:0}]
[L11] COND FALSE !((((*(unsigned*)&d) & 0x7FF00000) >> 20) == 2047)
[L13] ((unsigned*)&dmax)[0] = 0x47efffff
[L14] ((unsigned*)&dmax)[1] = 0xe0000000
[L16] EXPR \read(d)
[L16] EXPR \read(dmax)
VAL [\old(d)=7, \read(d)=7, \read(dmax)=2, d={2441:0}, dmax={2440:0}, f={2439:0}]
[L16] COND FALSE !(d > dmax)
[L19] EXPR \read(d)
[L19] EXPR \read(dmax)
VAL [\old(d)=7, \read(d)=7, \read(dmax)=2, d={2441:0}, dmax={2440:0}, f={2439:0}]
[L19] COND FALSE !(-d > dmax)
[L23] EXPR \read(d)
[L23] EXPR d >= -3.41e38 && d <= 3.41e38
[L23] EXPR \read(d)
[L23] EXPR d >= -3.41e38 && d <= 3.41e38
VAL [\old(d)=7, \read(d)=7, \read(d)=7, d={2441:0}, dmax={2440:0}, f={2439:0}]
[L23] CALL __VERIFIER_assert(d >= -3.41e38 && d <= 3.41e38)
VAL [\old(cond)=0]
[L3] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0]
[L3] __VERIFIER_error()
VAL [\old(cond)=0, cond=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 28 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=28occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 4 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 could not prove your program: unable to determine feasibility of some traces
Received shutdown request...