/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/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-5644d1e-m
[2020-08-19 00:17:24,804 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-08-19 00:17:24,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-08-19 00:17:24,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-08-19 00:17:24,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-08-19 00:17:24,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-08-19 00:17:24,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-08-19 00:17:24,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-08-19 00:17:24,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-08-19 00:17:24,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-08-19 00:17:24,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-08-19 00:17:24,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-08-19 00:17:24,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-08-19 00:17:24,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-08-19 00:17:24,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-08-19 00:17:24,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-08-19 00:17:24,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-08-19 00:17:24,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-08-19 00:17:24,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-08-19 00:17:24,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-08-19 00:17:24,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-08-19 00:17:24,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-08-19 00:17:24,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-08-19 00:17:24,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-08-19 00:17:24,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-08-19 00:17:24,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-08-19 00:17:24,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-08-19 00:17:24,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-08-19 00:17:24,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-08-19 00:17:24,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-08-19 00:17:24,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-08-19 00:17:24,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-08-19 00:17:24,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-08-19 00:17:24,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-08-19 00:17:24,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-08-19 00:17:24,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-08-19 00:17:24,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-08-19 00:17:24,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-08-19 00:17:24,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-08-19 00:17:24,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-08-19 00:17:24,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-08-19 00:17:24,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-08-19 00:17:24,906 INFO L113 SettingsManager]: Loading preferences was successful
[2020-08-19 00:17:24,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-08-19 00:17:24,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-08-19 00:17:24,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-08-19 00:17:24,911 INFO L138 SettingsManager]: * Use SBE=true
[2020-08-19 00:17:24,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-08-19 00:17:24,911 INFO L138 SettingsManager]: * sizeof long=4
[2020-08-19 00:17:24,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-08-19 00:17:24,912 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-08-19 00:17:24,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-08-19 00:17:24,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-08-19 00:17:24,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-08-19 00:17:24,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-08-19 00:17:24,918 INFO L138 SettingsManager]: * sizeof long double=12
[2020-08-19 00:17:24,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-08-19 00:17:24,918 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-08-19 00:17:24,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-08-19 00:17:24,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-08-19 00:17:24,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-08-19 00:17:24,919 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-08-19 00:17:24,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-08-19 00:17:24,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-08-19 00:17:24,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-08-19 00:17:24,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-08-19 00:17:24,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-08-19 00:17:24,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-08-19 00:17:24,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-08-19 00:17:24,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-08-19 00:17:24,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-08-19 00:17:24,923 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 -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;
[2020-08-19 00:17:25,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-08-19 00:17:25,237 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-08-19 00:17:25,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-08-19 00:17:25,242 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-08-19 00:17:25,242 INFO L275 PluginConnector]: CDTParser initialized
[2020-08-19 00:17:25,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c
[2020-08-19 00:17:25,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab30ebd7/6ba4a98ae4fb4e27a88d2499e0e1f530/FLAG2bf559d22
[2020-08-19 00:17:25,810 INFO L306 CDTParser]: Found 1 translation units.
[2020-08-19 00:17:25,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1232b.c
[2020-08-19 00:17:25,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab30ebd7/6ba4a98ae4fb4e27a88d2499e0e1f530/FLAG2bf559d22
[2020-08-19 00:17:26,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cab30ebd7/6ba4a98ae4fb4e27a88d2499e0e1f530
[2020-08-19 00:17:26,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-08-19 00:17:26,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-08-19 00:17:26,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-08-19 00:17:26,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-08-19 00:17:26,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-08-19 00:17:26,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d198e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26, skipping insertion in model container
[2020-08-19 00:17:26,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-08-19 00:17:26,220 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-08-19 00:17:26,436 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-19 00:17:26,440 INFO L203 MainTranslator]: Completed pre-run
[2020-08-19 00:17:26,471 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-08-19 00:17:26,576 INFO L208 MainTranslator]: Completed translation
[2020-08-19 00:17:26,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26 WrapperNode
[2020-08-19 00:17:26,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-08-19 00:17:26,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-08-19 00:17:26,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-08-19 00:17:26,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-08-19 00:17:26,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
[2020-08-19 00:17:26,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-08-19 00:17:26,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-08-19 00:17:26,617 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-08-19 00:17:26,617 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-08-19 00:17:26,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-08-19 00:17:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-08-19 00:17:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-08-19 00:17:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double
[2020-08-19 00:17:26,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double
[2020-08-19 00:17:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double
[2020-08-19 00:17:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double
[2020-08-19 00:17:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-08-19 00:17:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-08-19 00:17:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2020-08-19 00:17:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double
[2020-08-19 00:17:26,689 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double
[2020-08-19 00:17:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-08-19 00:17:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-08-19 00:17:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-08-19 00:17:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-08-19 00:17:26,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-08-19 00:17:26,999 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-08-19 00:17:27,000 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-08-19 00:17:27,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:17:27 BoogieIcfgContainer
[2020-08-19 00:17:27,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-08-19 00:17:27,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-08-19 00:17:27,006 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-08-19 00:17:27,009 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-08-19 00:17:27,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 12:17:26" (1/3) ...
[2020-08-19 00:17:27,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c806bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:17:27, skipping insertion in model container
[2020-08-19 00:17:27,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 12:17:26" (2/3) ...
[2020-08-19 00:17:27,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c806bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 12:17:27, skipping insertion in model container
[2020-08-19 00:17:27,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 12:17:27" (3/3) ...
[2020-08-19 00:17:27,013 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232b.c
[2020-08-19 00:17:27,026 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-08-19 00:17:27,034 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-08-19 00:17:27,053 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-08-19 00:17:27,082 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-08-19 00:17:27,082 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-08-19 00:17:27,082 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-08-19 00:17:27,082 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-08-19 00:17:27,082 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-08-19 00:17:27,082 INFO L380 AbstractCegarLoop]: Difference is false
[2020-08-19 00:17:27,083 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-08-19 00:17:27,083 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-08-19 00:17:27,104 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states.
[2020-08-19 00:17:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-08-19 00:17:27,112 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-19 00:17:27,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 00:17:27,113 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 00:17:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 00:17:27,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1786760399, now seen corresponding path program 1 times
[2020-08-19 00:17:27,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 00:17:27,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194498802]
[2020-08-19 00:17:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 00:17:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 00:17:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-19 00:17:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-19 00:17:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 00:17:27,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194498802]
[2020-08-19 00:17:27,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 00:17:27,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-08-19 00:17:27,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632491610]
[2020-08-19 00:17:27,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-08-19 00:17:27,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 00:17:27,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-08-19 00:17:27,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-08-19 00:17:27,399 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 4 states.
[2020-08-19 00:17:27,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 00:17:27,666 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions.
[2020-08-19 00:17:27,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-08-19 00:17:27,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22
[2020-08-19 00:17:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 00:17:27,680 INFO L225 Difference]: With dead ends: 79
[2020-08-19 00:17:27,680 INFO L226 Difference]: Without dead ends: 40
[2020-08-19 00:17:27,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-08-19 00:17:27,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-08-19 00:17:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-08-19 00:17:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-08-19 00:17:27,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions.
[2020-08-19 00:17:27,737 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22
[2020-08-19 00:17:27,738 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-19 00:17:27,738 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions.
[2020-08-19 00:17:27,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-08-19 00:17:27,739 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions.
[2020-08-19 00:17:27,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-08-19 00:17:27,741 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-19 00:17:27,741 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 00:17:27,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-08-19 00:17:27,742 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 00:17:27,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 00:17:27,747 INFO L82 PathProgramCache]: Analyzing trace with hash -952976765, now seen corresponding path program 1 times
[2020-08-19 00:17:27,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 00:17:27,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690929325]
[2020-08-19 00:17:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 00:17:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 00:17:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-19 00:17:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-19 00:17:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 00:17:27,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690929325]
[2020-08-19 00:17:27,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 00:17:27,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-08-19 00:17:27,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359367894]
[2020-08-19 00:17:27,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-08-19 00:17:27,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 00:17:27,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-08-19 00:17:27,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-08-19 00:17:27,960 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states.
[2020-08-19 00:17:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 00:17:28,248 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions.
[2020-08-19 00:17:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-08-19 00:17:28,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23
[2020-08-19 00:17:28,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 00:17:28,255 INFO L225 Difference]: With dead ends: 59
[2020-08-19 00:17:28,256 INFO L226 Difference]: Without dead ends: 44
[2020-08-19 00:17:28,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-08-19 00:17:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states.
[2020-08-19 00:17:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44.
[2020-08-19 00:17:28,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states.
[2020-08-19 00:17:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions.
[2020-08-19 00:17:28,285 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23
[2020-08-19 00:17:28,286 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-19 00:17:28,286 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions.
[2020-08-19 00:17:28,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-08-19 00:17:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions.
[2020-08-19 00:17:28,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-08-19 00:17:28,289 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-19 00:17:28,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 00:17:28,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-08-19 00:17:28,290 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 00:17:28,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 00:17:28,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1944362408, now seen corresponding path program 1 times
[2020-08-19 00:17:28,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 00:17:28,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1691730042]
[2020-08-19 00:17:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 00:17:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:28,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-08-19 00:17:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:28,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-08-19 00:17:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:28,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2020-08-19 00:17:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-08-19 00:17:28,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-08-19 00:17:28,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1691730042]
[2020-08-19 00:17:28,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-08-19 00:17:28,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-08-19 00:17:28,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776573483]
[2020-08-19 00:17:28,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-08-19 00:17:28,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-08-19 00:17:28,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-08-19 00:17:28,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-08-19 00:17:28,512 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 6 states.
[2020-08-19 00:17:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-08-19 00:17:28,741 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions.
[2020-08-19 00:17:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-08-19 00:17:28,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26
[2020-08-19 00:17:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-08-19 00:17:28,744 INFO L225 Difference]: With dead ends: 63
[2020-08-19 00:17:28,744 INFO L226 Difference]: Without dead ends: 48
[2020-08-19 00:17:28,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-08-19 00:17:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2020-08-19 00:17:28,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44.
[2020-08-19 00:17:28,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states.
[2020-08-19 00:17:28,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions.
[2020-08-19 00:17:28,755 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26
[2020-08-19 00:17:28,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-08-19 00:17:28,756 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions.
[2020-08-19 00:17:28,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-08-19 00:17:28,756 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions.
[2020-08-19 00:17:28,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-08-19 00:17:28,757 INFO L414 BasicCegarLoop]: Found error trace
[2020-08-19 00:17:28,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-08-19 00:17:28,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-08-19 00:17:28,758 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-08-19 00:17:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-08-19 00:17:28,759 INFO L82 PathProgramCache]: Analyzing trace with hash 553653529, now seen corresponding path program 1 times
[2020-08-19 00:17:28,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-08-19 00:17:28,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713375572]
[2020-08-19 00:17:28,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-08-19 00:17:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-08-19 00:17:28,780 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-08-19 00:17:28,781 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-08-19 00:17:28,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-08-19 00:17:28,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 12:17:28 BoogieIcfgContainer
[2020-08-19 00:17:28,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-08-19 00:17:28,809 INFO L168 Benchmark]: Toolchain (without parser) took 2631.54 ms. Allocated memory was 140.0 MB in the beginning and 236.5 MB in the end (delta: 96.5 MB). Free memory was 103.1 MB in the beginning and 140.6 MB in the end (delta: -37.5 MB). Peak memory consumption was 59.0 MB. Max. memory is 7.1 GB.
[2020-08-19 00:17:28,810 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-08-19 00:17:28,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.40 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 181.1 MB in the end (delta: -78.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB.
[2020-08-19 00:17:28,812 INFO L168 Benchmark]: Boogie Preprocessor took 38.72 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 179.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-08-19 00:17:28,813 INFO L168 Benchmark]: RCFGBuilder took 387.50 ms. Allocated memory is still 202.9 MB. Free memory was 179.1 MB in the beginning and 157.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB.
[2020-08-19 00:17:28,814 INFO L168 Benchmark]: TraceAbstraction took 1800.28 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 156.5 MB in the beginning and 140.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB.
[2020-08-19 00:17:28,818 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 398.40 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 181.1 MB in the end (delta: -78.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 38.72 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 179.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 387.50 ms. Allocated memory is still 202.9 MB. Free memory was 179.1 MB in the beginning and 157.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1800.28 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 156.5 MB in the beginning and 140.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someUnaryDOUBLEoperation at line 74.
Possible FailurePath:
[L74] double x = -0.0;
[L75] double y = 0.0;
[L76] CALL, EXPR fmin_double(x, y)
[L46] CALL, EXPR __fpclassify_double(x)
[L19] __uint32_t msw, lsw;
[L22] ieee_double_shape_type ew_u;
[L23] ew_u.value = (x)
[L24] EXPR ew_u.parts.msw
[L24] (msw) = ew_u.parts.msw
[L25] EXPR ew_u.parts.lsw
[L25] (lsw) = ew_u.parts.lsw
[L28-L29] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) ||
(msw == 0x80000000 && lsw == 0x00000000))
[L31-L32] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) ||
(msw >= 0x80100000 && msw <= 0xffefffff))
[L34-L35] COND FALSE !(( msw <= 0x000fffff) ||
(msw >= 0x80000000 && msw <= 0x800fffff))
[L38-L39] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) ||
(msw == 0xfff00000 && lsw == 0x00000000))
[L42] return 0;
[L46] RET, EXPR __fpclassify_double(x)
[L46] COND TRUE __fpclassify_double(x) == 0
[L47] return y;
[L76] RET, EXPR fmin_double(x, y)
[L76] double res = fmin_double(x, y);
[L79] EXPR res == -0.0 && __signbit_double(res) == 1
[L79] COND TRUE !(res == -0.0 && __signbit_double(res) == 1)
[L80] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 117 SDslu, 43 SDs, 0 SdLazy, 296 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 4170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...