./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version ff03de63
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ded13d718947e0cef3a9581cc7bfa480a12833eb2a7beb86b46438a532a4bf69
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-ff03de6
[2021-12-21 11:56:31,215 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-12-21 11:56:31,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-21 11:56:31,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-21 11:56:31,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-21 11:56:31,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-21 11:56:31,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-21 11:56:31,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-21 11:56:31,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-21 11:56:31,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-21 11:56:31,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-12-21 11:56:31,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-21 11:56:31,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-21 11:56:31,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-21 11:56:31,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-21 11:56:31,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-21 11:56:31,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-21 11:56:31,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-21 11:56:31,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-21 11:56:31,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-21 11:56:31,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-21 11:56:31,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-21 11:56:31,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-12-21 11:56:31,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-21 11:56:31,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-21 11:56:31,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-21 11:56:31,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-21 11:56:31,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-21 11:56:31,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-21 11:56:31,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-21 11:56:31,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-21 11:56:31,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-21 11:56:31,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-21 11:56:31,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-21 11:56:31,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-21 11:56:31,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-21 11:56:31,334 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-21 11:56:31,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-21 11:56:31,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-21 11:56:31,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-21 11:56:31,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-12-21 11:56:31,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-21 11:56:31,372 INFO L113 SettingsManager]: Loading preferences was successful
[2021-12-21 11:56:31,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-21 11:56:31,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-21 11:56:31,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-21 11:56:31,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-21 11:56:31,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-21 11:56:31,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-21 11:56:31,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-12-21 11:56:31,375 INFO L138 SettingsManager]: * Use SBE=true
[2021-12-21 11:56:31,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-21 11:56:31,376 INFO L138 SettingsManager]: * sizeof long=4
[2021-12-21 11:56:31,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-12-21 11:56:31,376 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-12-21 11:56:31,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-12-21 11:56:31,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-12-21 11:56:31,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-21 11:56:31,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-12-21 11:56:31,377 INFO L138 SettingsManager]: * sizeof long double=12
[2021-12-21 11:56:31,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-12-21 11:56:31,378 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-12-21 11:56:31,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-12-21 11:56:31,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-21 11:56:31,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-12-21 11:56:31,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-12-21 11:56:31,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-21 11:56:31,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-21 11:56:31,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-12-21 11:56:31,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-21 11:56:31,380 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-12-21 11:56:31,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-21 11:56:31,380 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-12-21 11:56:31,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-21 11:56:31,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-21 11:56:31,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-12-21 11:56:31,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ded13d718947e0cef3a9581cc7bfa480a12833eb2a7beb86b46438a532a4bf69
[2021-12-21 11:56:31,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-21 11:56:31,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-21 11:56:31,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-21 11:56:31,638 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-12-21 11:56:31,638 INFO L275 PluginConnector]: CDTParser initialized
[2021-12-21 11:56:31,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c
[2021-12-21 11:56:31,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443e9e7f1/95dc8db32faa4748b400752dc5707be8/FLAG343ac3356
[2021-12-21 11:56:32,138 INFO L306 CDTParser]: Found 1 translation units.
[2021-12-21 11:56:32,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c
[2021-12-21 11:56:32,145 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443e9e7f1/95dc8db32faa4748b400752dc5707be8/FLAG343ac3356
[2021-12-21 11:56:32,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/443e9e7f1/95dc8db32faa4748b400752dc5707be8
[2021-12-21 11:56:32,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-21 11:56:32,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-21 11:56:32,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-21 11:56:32,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-21 11:56:32,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-21 11:56:32,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e97678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32, skipping insertion in model container
[2021-12-21 11:56:32,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-12-21 11:56:32,198 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-12-21 11:56:32,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160]
[2021-12-21 11:56:32,464 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-21 11:56:32,476 INFO L203 MainTranslator]: Completed pre-run
[2021-12-21 11:56:32,546 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160]
[2021-12-21 11:56:32,553 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-21 11:56:32,567 INFO L208 MainTranslator]: Completed translation
[2021-12-21 11:56:32,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32 WrapperNode
[2021-12-21 11:56:32,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-21 11:56:32,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-21 11:56:32,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-21 11:56:32,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-21 11:56:32,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,629 INFO L137 Inliner]: procedures = 22, calls = 103, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 301
[2021-12-21 11:56:32,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-21 11:56:32,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-21 11:56:32,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-21 11:56:32,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-12-21 11:56:32,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-21 11:56:32,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-21 11:56:32,680 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-12-21 11:56:32,680 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-12-21 11:56:32,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (1/1) ...
[2021-12-21 11:56:32,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-21 11:56:32,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-21 11:56:32,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-21 11:56:32,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-21 11:56:32,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-21 11:56:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-21 11:56:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-12-21 11:56:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2021-12-21 11:56:32,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-12-21 11:56:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double
[2021-12-21 11:56:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double
[2021-12-21 11:56:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2021-12-21 11:56:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double
[2021-12-21 11:56:32,747 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double
[2021-12-21 11:56:32,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-21 11:56:32,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-21 11:56:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-12-21 11:56:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real
[2021-12-21 11:56:32,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-12-21 11:56:32,853 INFO L234 CfgBuilder]: Building ICFG
[2021-12-21 11:56:32,854 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-21 11:56:33,197 INFO L275 CfgBuilder]: Performing block encoding
[2021-12-21 11:56:33,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-21 11:56:33,205 INFO L299 CfgBuilder]: Removed 22 assume(true) statements.
[2021-12-21 11:56:33,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:56:33 BoogieIcfgContainer
[2021-12-21 11:56:33,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-21 11:56:33,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-21 11:56:33,209 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-12-21 11:56:33,212 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-12-21 11:56:33,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:56:32" (1/3) ...
[2021-12-21 11:56:33,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b375af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:56:33, skipping insertion in model container
[2021-12-21 11:56:33,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:32" (2/3) ...
[2021-12-21 11:56:33,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b375af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:56:33, skipping insertion in model container
[2021-12-21 11:56:33,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:56:33" (3/3) ...
[2021-12-21 11:56:33,214 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c
[2021-12-21 11:56:33,218 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-21 11:56:33,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-21 11:56:33,251 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-21 11:56:33,256 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-12-21 11:56:33,257 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-21 11:56:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 100 states have (on average 1.65) internal successors, (165), 101 states have internal predecessors, (165), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:56:33,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-12-21 11:56:33,275 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:56:33,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-21 11:56:33,276 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:56:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:56:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1361939207, now seen corresponding path program 1 times
[2021-12-21 11:56:33,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-21 11:56:33,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078186074]
[2021-12-21 11:56:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:56:33,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-21 11:56:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:56:33,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:56:33,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-21 11:56:33,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078186074]
[2021-12-21 11:56:33,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078186074] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:56:33,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:56:33,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-21 11:56:33,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219767093]
[2021-12-21 11:56:33,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:56:33,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-12-21 11:56:33,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-21 11:56:33,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-12-21 11:56:33,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-12-21 11:56:33,511 INFO L87 Difference]: Start difference. First operand has 108 states, 100 states have (on average 1.65) internal successors, (165), 101 states have internal predecessors, (165), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:56:33,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:56:33,560 INFO L93 Difference]: Finished difference Result 214 states and 348 transitions.
[2021-12-21 11:56:33,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-12-21 11:56:33,562 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-12-21 11:56:33,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:56:33,597 INFO L225 Difference]: With dead ends: 214
[2021-12-21 11:56:33,597 INFO L226 Difference]: Without dead ends: 104
[2021-12-21 11:56:33,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-12-21 11:56:33,604 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-21 11:56:33,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-21 11:56:33,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2021-12-21 11:56:33,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2021-12-21 11:56:33,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 97 states have internal predecessors, (137), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:56:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 145 transitions.
[2021-12-21 11:56:33,654 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 145 transitions. Word has length 16
[2021-12-21 11:56:33,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:56:33,654 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 145 transitions.
[2021-12-21 11:56:33,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:56:33,655 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 145 transitions.
[2021-12-21 11:56:33,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-12-21 11:56:33,657 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:56:33,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-21 11:56:33,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-12-21 11:56:33,658 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:56:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:56:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash 737645393, now seen corresponding path program 1 times
[2021-12-21 11:56:33,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-21 11:56:33,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169252580]
[2021-12-21 11:56:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:56:33,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-21 11:56:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:56:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:56:33,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-21 11:56:33,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169252580]
[2021-12-21 11:56:33,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169252580] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:56:33,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:56:33,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-12-21 11:56:33,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124619148]
[2021-12-21 11:56:33,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:56:33,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-21 11:56:33,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-21 11:56:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-21 11:56:33,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-21 11:56:33,795 INFO L87 Difference]: Start difference. First operand 104 states and 145 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:56:33,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:56:33,834 INFO L93 Difference]: Finished difference Result 197 states and 278 transitions.
[2021-12-21 11:56:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-12-21 11:56:33,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2021-12-21 11:56:33,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:56:33,836 INFO L225 Difference]: With dead ends: 197
[2021-12-21 11:56:33,837 INFO L226 Difference]: Without dead ends: 104
[2021-12-21 11:56:33,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-21 11:56:33,840 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-21 11:56:33,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-21 11:56:33,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2021-12-21 11:56:33,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2021-12-21 11:56:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.402061855670103) internal successors, (136), 97 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:56:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 144 transitions.
[2021-12-21 11:56:33,853 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 144 transitions. Word has length 19
[2021-12-21 11:56:33,853 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:56:33,854 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 144 transitions.
[2021-12-21 11:56:33,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:56:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 144 transitions.
[2021-12-21 11:56:33,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-12-21 11:56:33,860 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:56:33,860 INFO L514 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]
[2021-12-21 11:56:33,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-12-21 11:56:33,860 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:56:33,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:56:33,861 INFO L85 PathProgramCache]: Analyzing trace with hash -251660186, now seen corresponding path program 1 times
[2021-12-21 11:56:33,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-21 11:56:33,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005794750]
[2021-12-21 11:56:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:56:33,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-21 11:56:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-12-21 11:56:34,025 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-12-21 11:56:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-12-21 11:56:34,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-12-21 11:56:34,146 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-12-21 11:56:34,147 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-12-21 11:56:34,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-12-21 11:56:34,151 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2021-12-21 11:56:34,153 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-12-21 11:56:34,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:56:34 BoogieIcfgContainer
[2021-12-21 11:56:34,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-12-21 11:56:34,211 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-12-21 11:56:34,211 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-12-21 11:56:34,211 INFO L275 PluginConnector]: Witness Printer initialized
[2021-12-21 11:56:34,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:56:33" (3/4) ...
[2021-12-21 11:56:34,214 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-12-21 11:56:34,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-12-21 11:56:34,215 INFO L158 Benchmark]: Toolchain (without parser) took 2055.26ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 77.5MB in the beginning and 56.4MB in the end (delta: 21.1MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB.
[2021-12-21 11:56:34,215 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-12-21 11:56:34,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.97ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 77.2MB in the beginning and 100.2MB in the end (delta: -23.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-12-21 11:56:34,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.29ms. Allocated memory is still 130.0MB. Free memory was 99.7MB in the beginning and 97.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-12-21 11:56:34,224 INFO L158 Benchmark]: Boogie Preprocessor took 48.90ms. Allocated memory is still 130.0MB. Free memory was 97.1MB in the beginning and 94.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2021-12-21 11:56:34,224 INFO L158 Benchmark]: RCFGBuilder took 527.51ms. Allocated memory is still 130.0MB. Free memory was 94.4MB in the beginning and 69.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
[2021-12-21 11:56:34,225 INFO L158 Benchmark]: TraceAbstraction took 1001.45ms. Allocated memory is still 130.0MB. Free memory was 68.7MB in the beginning and 56.4MB in the end (delta: 12.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
[2021-12-21 11:56:34,225 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 130.0MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-12-21 11:56:34,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 63.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 408.97ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 77.2MB in the beginning and 100.2MB in the end (delta: -23.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 59.29ms. Allocated memory is still 130.0MB. Free memory was 99.7MB in the beginning and 97.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 48.90ms. Allocated memory is still 130.0MB. Free memory was 97.1MB in the beginning and 94.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 527.51ms. Allocated memory is still 130.0MB. Free memory was 94.4MB in the beginning and 69.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB.
* TraceAbstraction took 1001.45ms. Allocated memory is still 130.0MB. Free memory was 68.7MB in the beginning and 56.4MB in the end (delta: 12.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB.
* Witness Printer took 3.12ms. Allocated memory is still 130.0MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- UnprovableResult [Line: 300]: Unable to prove that call to reach_error is unreachable
Unable to prove that call to reach_error is unreachable
Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299.
Possible FailurePath:
[L39-L44] static const double atanhi_atan[] = {
4.63647609000806093515e-01,
7.85398163397448278999e-01,
9.82793723247329054082e-01,
1.57079632679489655800e+00,
};
[L46-L51] static const double atanlo_atan[] = {
2.26987774529616870924e-17,
3.06161699786838301793e-17,
1.39033110312309984516e-17,
6.12323399573676603587e-17,
};
[L53-L60] static const double aT_atan[] = {
3.33333333333329318027e-01, -1.99999999998764832476e-01,
1.42857142725034663711e-01, -1.11111104054623557880e-01,
9.09088713343650656196e-02, -7.69187620504482999495e-02,
6.66107313738753120669e-02, -5.83357013379057348645e-02,
4.97687799461593236017e-02, -3.65315727442169155270e-02,
1.62858201153657823623e-02,
};
[L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01,
pi_o_2 = 1.5707963267948965580E+00,
pi = 3.1415926535897931160E+00, huge_atan = 1.0e300;
[L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0,
pi_lo_atan2 = 1.2246467991473531772E-16;
VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0]
[L291] double x = 1.0 / 0.0;
[L292] double y = __VERIFIER_nondet_double();
[L294] CALL, EXPR isinf_double(x)
[L248] __int32_t hx, lx;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0]
[L250] ieee_double_shape_type ew_u;
[L251] ew_u.value = (x)
[L252] EXPR ew_u.parts.msw
[L252] (hx) = ew_u.parts.msw
[L253] EXPR ew_u.parts.lsw
[L253] (lx) = ew_u.parts.lsw
[L255] hx &= 0x7fffffff
[L256] hx |= (__uint32_t)(lx | (-lx)) >> 31
[L257] hx = 0x7ff00000 - hx
[L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31);
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \result=1, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, zero_atan2=0]
[L294] RET, EXPR isinf_double(x)
[L294] EXPR isinf_double(x) && isfinite_double(y)
[L294] CALL, EXPR isfinite_double(y)
[L262] __int32_t hx;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L264] ieee_double_shape_type gh_u;
[L265] gh_u.value = (x)
[L266] EXPR gh_u.parts.msw
[L266] (hx) = gh_u.parts.msw
[L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31);
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \result=-3, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L294] RET, EXPR isfinite_double(y)
[L294] EXPR isinf_double(x) && isfinite_double(y)
VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isfinite_double(y)=-3, isinf_double(x)=1, isinf_double(x) && isfinite_double(y)=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0
[L296] CALL, EXPR __ieee754_atan2(y, x)
[L145] double z;
[L146] __int32_t k, m, hx, hy, ix, iy;
[L147] __uint32_t lx, ly;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L150] ieee_double_shape_type ew_u;
[L151] ew_u.value = (x)
[L152] EXPR ew_u.parts.msw
[L152] (hx) = ew_u.parts.msw
[L153] EXPR ew_u.parts.lsw
[L153] (lx) = ew_u.parts.lsw
[L155] ix = hx & 0x7fffffff
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L157] ieee_double_shape_type ew_u;
[L158] ew_u.value = (y)
[L159] EXPR ew_u.parts.msw
[L159] (hy) = ew_u.parts.msw
[L160] EXPR ew_u.parts.lsw
[L160] (ly) = ew_u.parts.lsw
[L162] iy = hy & 0x7fffffff
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) ||
((iy | ((ly | -ly) >> 31)) > 0x7ff00000)
[L165] return x + y;
VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=0, hy=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L296] RET, EXPR __ieee754_atan2(y, x)
[L296] double res = __ieee754_atan2(y, x);
[L299] EXPR res == -0.0 && __signbit_double(res) == 1
VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, res == -0.0 && __signbit_double(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
[L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1)
[L300] reach_error()
VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 434 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 139 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 295 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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
[2021-12-21 11:56:34,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ded13d718947e0cef3a9581cc7bfa480a12833eb2a7beb86b46438a532a4bf69
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-ff03de6
[2021-12-21 11:56:36,070 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-12-21 11:56:36,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-21 11:56:36,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-21 11:56:36,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-21 11:56:36,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-21 11:56:36,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-21 11:56:36,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-21 11:56:36,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-21 11:56:36,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-21 11:56:36,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-12-21 11:56:36,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-21 11:56:36,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-21 11:56:36,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-21 11:56:36,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-21 11:56:36,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-21 11:56:36,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-21 11:56:36,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-21 11:56:36,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-21 11:56:36,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-21 11:56:36,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-21 11:56:36,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-21 11:56:36,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-12-21 11:56:36,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-21 11:56:36,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-21 11:56:36,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-21 11:56:36,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-21 11:56:36,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-21 11:56:36,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-21 11:56:36,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-21 11:56:36,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-21 11:56:36,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-21 11:56:36,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-21 11:56:36,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-21 11:56:36,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-21 11:56:36,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-21 11:56:36,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-21 11:56:36,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-21 11:56:36,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-21 11:56:36,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-21 11:56:36,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-12-21 11:56:36,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-12-21 11:56:36,206 INFO L113 SettingsManager]: Loading preferences was successful
[2021-12-21 11:56:36,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-21 11:56:36,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-21 11:56:36,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-21 11:56:36,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-21 11:56:36,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-21 11:56:36,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-21 11:56:36,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-12-21 11:56:36,210 INFO L138 SettingsManager]: * Use SBE=true
[2021-12-21 11:56:36,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-21 11:56:36,211 INFO L138 SettingsManager]: * sizeof long=4
[2021-12-21 11:56:36,211 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-12-21 11:56:36,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-12-21 11:56:36,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-12-21 11:56:36,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-21 11:56:36,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-12-21 11:56:36,212 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-12-21 11:56:36,212 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-12-21 11:56:36,212 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-12-21 11:56:36,212 INFO L138 SettingsManager]: * sizeof long double=12
[2021-12-21 11:56:36,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-12-21 11:56:36,213 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-12-21 11:56:36,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-12-21 11:56:36,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-21 11:56:36,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-12-21 11:56:36,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-12-21 11:56:36,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-21 11:56:36,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-21 11:56:36,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-12-21 11:56:36,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-21 11:56:36,215 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-12-21 11:56:36,215 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-12-21 11:56:36,215 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-12-21 11:56:36,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-21 11:56:36,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-21 11:56:36,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-12-21 11:56:36,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-12-21 11:56:36,216 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ded13d718947e0cef3a9581cc7bfa480a12833eb2a7beb86b46438a532a4bf69
[2021-12-21 11:56:36,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-21 11:56:36,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-21 11:56:36,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-21 11:56:36,534 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-12-21 11:56:36,534 INFO L275 PluginConnector]: CDTParser initialized
[2021-12-21 11:56:36,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c
[2021-12-21 11:56:36,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804f317f9/402922790e9a4e22a3cd5cd2ac66ee85/FLAG3064d844e
[2021-12-21 11:56:37,034 INFO L306 CDTParser]: Found 1 translation units.
[2021-12-21 11:56:37,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c
[2021-12-21 11:56:37,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804f317f9/402922790e9a4e22a3cd5cd2ac66ee85/FLAG3064d844e
[2021-12-21 11:56:37,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/804f317f9/402922790e9a4e22a3cd5cd2ac66ee85
[2021-12-21 11:56:37,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-21 11:56:37,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-21 11:56:37,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-21 11:56:37,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-21 11:56:37,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-21 11:56:37,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da18a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37, skipping insertion in model container
[2021-12-21 11:56:37,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-12-21 11:56:37,489 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-12-21 11:56:37,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160]
[2021-12-21 11:56:37,668 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-21 11:56:37,698 INFO L203 MainTranslator]: Completed pre-run
[2021-12-21 11:56:37,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160]
[2021-12-21 11:56:37,810 INFO L209 PostProcessor]: Analyzing one entry point: main
[2021-12-21 11:56:37,835 INFO L208 MainTranslator]: Completed translation
[2021-12-21 11:56:37,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37 WrapperNode
[2021-12-21 11:56:37,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-21 11:56:37,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-21 11:56:37,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-21 11:56:37,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-21 11:56:37,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,903 INFO L137 Inliner]: procedures = 25, calls = 103, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 299
[2021-12-21 11:56:37,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-21 11:56:37,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-21 11:56:37,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-21 11:56:37,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-12-21 11:56:37,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:37,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-21 11:56:37,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-21 11:56:37,994 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-12-21 11:56:37,995 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-12-21 11:56:37,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (1/1) ...
[2021-12-21 11:56:38,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-21 11:56:38,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-21 11:56:38,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-21 11:56:38,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-21 11:56:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-21 11:56:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8
[2021-12-21 11:56:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8
[2021-12-21 11:56:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-12-21 11:56:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-12-21 11:56:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double
[2021-12-21 11:56:38,057 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double
[2021-12-21 11:56:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8
[2021-12-21 11:56:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double
[2021-12-21 11:56:38,057 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double
[2021-12-21 11:56:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-12-21 11:56:38,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-21 11:56:38,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-21 11:56:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-12-21 11:56:38,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-12-21 11:56:38,199 INFO L234 CfgBuilder]: Building ICFG
[2021-12-21 11:56:38,200 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-21 11:57:00,771 INFO L275 CfgBuilder]: Performing block encoding
[2021-12-21 11:57:00,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-21 11:57:00,777 INFO L299 CfgBuilder]: Removed 22 assume(true) statements.
[2021-12-21 11:57:00,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:57:00 BoogieIcfgContainer
[2021-12-21 11:57:00,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-21 11:57:00,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-21 11:57:00,780 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-12-21 11:57:00,782 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-12-21 11:57:00,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:56:37" (1/3) ...
[2021-12-21 11:57:00,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1f9c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:57:00, skipping insertion in model container
[2021-12-21 11:57:00,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:56:37" (2/3) ...
[2021-12-21 11:57:00,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1f9c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:57:00, skipping insertion in model container
[2021-12-21 11:57:00,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:57:00" (3/3) ...
[2021-12-21 11:57:00,785 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c
[2021-12-21 11:57:00,789 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-21 11:57:00,789 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-21 11:57:00,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-21 11:57:00,844 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-12-21 11:57:00,845 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-21 11:57:00,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 100 states have (on average 1.65) internal successors, (165), 101 states have internal predecessors, (165), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:57:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-12-21 11:57:00,860 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:57:00,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-21 11:57:00,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:57:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:57:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1361939207, now seen corresponding path program 1 times
[2021-12-21 11:57:00,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-12-21 11:57:00,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353994898]
[2021-12-21 11:57:00,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:57:00,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-12-21 11:57:00,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-12-21 11:57:00,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-12-21 11:57:00,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-12-21 11:57:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:57:01,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-12-21 11:57:01,197 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-21 11:57:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:57:01,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-21 11:57:01,668 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-12-21 11:57:01,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353994898]
[2021-12-21 11:57:01,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353994898] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:57:01,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:57:01,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-21 11:57:01,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60424733]
[2021-12-21 11:57:01,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:57:01,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-12-21 11:57:01,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-12-21 11:57:01,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-12-21 11:57:01,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-12-21 11:57:01,703 INFO L87 Difference]: Start difference. First operand has 108 states, 100 states have (on average 1.65) internal successors, (165), 101 states have internal predecessors, (165), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:57:01,730 INFO L93 Difference]: Finished difference Result 214 states and 348 transitions.
[2021-12-21 11:57:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-12-21 11:57:01,731 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-12-21 11:57:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:57:01,738 INFO L225 Difference]: With dead ends: 214
[2021-12-21 11:57:01,738 INFO L226 Difference]: Without dead ends: 104
[2021-12-21 11:57:01,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-12-21 11:57:01,744 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-21 11:57:01,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-12-21 11:57:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2021-12-21 11:57:01,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2021-12-21 11:57:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.4123711340206186) internal successors, (137), 97 states have internal predecessors, (137), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:57:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 145 transitions.
[2021-12-21 11:57:01,776 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 145 transitions. Word has length 16
[2021-12-21 11:57:01,776 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:57:01,777 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 145 transitions.
[2021-12-21 11:57:01,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 145 transitions.
[2021-12-21 11:57:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-12-21 11:57:01,778 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:57:01,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-21 11:57:01,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-12-21 11:57:01,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-12-21 11:57:01,981 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:57:01,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:57:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash 737645393, now seen corresponding path program 1 times
[2021-12-21 11:57:01,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-12-21 11:57:01,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044256515]
[2021-12-21 11:57:01,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:57:01,984 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-12-21 11:57:01,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-12-21 11:57:01,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-12-21 11:57:01,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-12-21 11:57:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:57:02,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-12-21 11:57:02,280 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-21 11:57:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:57:02,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-21 11:57:02,887 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-12-21 11:57:02,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044256515]
[2021-12-21 11:57:02,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044256515] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:57:02,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:57:02,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-12-21 11:57:02,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829666121]
[2021-12-21 11:57:02,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:57:02,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-21 11:57:02,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-12-21 11:57:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-21 11:57:02,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-21 11:57:02,890 INFO L87 Difference]: Start difference. First operand 104 states and 145 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:03,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:57:03,282 INFO L93 Difference]: Finished difference Result 197 states and 278 transitions.
[2021-12-21 11:57:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-12-21 11:57:03,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2021-12-21 11:57:03,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:57:03,289 INFO L225 Difference]: With dead ends: 197
[2021-12-21 11:57:03,290 INFO L226 Difference]: Without dead ends: 104
[2021-12-21 11:57:03,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-21 11:57:03,293 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2021-12-21 11:57:03,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2021-12-21 11:57:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2021-12-21 11:57:03,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2021-12-21 11:57:03,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.402061855670103) internal successors, (136), 97 states have internal predecessors, (136), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:57:03,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 144 transitions.
[2021-12-21 11:57:03,312 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 144 transitions. Word has length 19
[2021-12-21 11:57:03,312 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:57:03,312 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 144 transitions.
[2021-12-21 11:57:03,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 144 transitions.
[2021-12-21 11:57:03,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-12-21 11:57:03,313 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:57:03,313 INFO L514 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]
[2021-12-21 11:57:03,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-12-21 11:57:03,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-12-21 11:57:03,514 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:57:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:57:03,515 INFO L85 PathProgramCache]: Analyzing trace with hash -251660186, now seen corresponding path program 1 times
[2021-12-21 11:57:03,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-12-21 11:57:03,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541027428]
[2021-12-21 11:57:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:57:03,516 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-12-21 11:57:03,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-12-21 11:57:03,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-12-21 11:57:03,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-12-21 11:57:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:57:03,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 32 conjunts are in the unsatisfiable core
[2021-12-21 11:57:03,958 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-21 11:57:05,234 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16
[2021-12-21 11:57:12,424 INFO L190 IndexEqualityManager]: detected not equals via solver
[2021-12-21 11:57:13,100 INFO L353 Elim1Store]: treesize reduction 14, result has 44.0 percent of original size
[2021-12-21 11:57:13,100 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 42
[2021-12-21 11:57:19,247 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-12-21 11:57:19,248 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 17
[2021-12-21 11:57:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:57:24,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-21 11:57:24,922 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-12-21 11:57:24,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541027428]
[2021-12-21 11:57:24,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541027428] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:57:24,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:57:24,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2021-12-21 11:57:24,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646324935]
[2021-12-21 11:57:24,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:57:24,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-12-21 11:57:24,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-12-21 11:57:24,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-12-21 11:57:24,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2021-12-21 11:57:24,924 INFO L87 Difference]: Start difference. First operand 104 states and 144 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:24,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:57:24,950 INFO L93 Difference]: Finished difference Result 113 states and 153 transitions.
[2021-12-21 11:57:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-12-21 11:57:24,951 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23
[2021-12-21 11:57:24,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:57:24,952 INFO L225 Difference]: With dead ends: 113
[2021-12-21 11:57:24,952 INFO L226 Difference]: Without dead ends: 104
[2021-12-21 11:57:24,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2021-12-21 11:57:24,954 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 2 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-21 11:57:24,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 981 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 110 Unchecked, 0.0s Time]
[2021-12-21 11:57:24,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2021-12-21 11:57:24,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104.
[2021-12-21 11:57:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:57:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 143 transitions.
[2021-12-21 11:57:24,962 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 143 transitions. Word has length 23
[2021-12-21 11:57:24,962 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:57:24,963 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 143 transitions.
[2021-12-21 11:57:24,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:24,963 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 143 transitions.
[2021-12-21 11:57:24,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-12-21 11:57:24,965 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:57:24,965 INFO L514 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, 1, 1]
[2021-12-21 11:57:24,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-12-21 11:57:25,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-12-21 11:57:25,172 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:57:25,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:57:25,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1496407545, now seen corresponding path program 1 times
[2021-12-21 11:57:25,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-12-21 11:57:25,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467182800]
[2021-12-21 11:57:25,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:57:25,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-12-21 11:57:25,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-12-21 11:57:25,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-12-21 11:57:25,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-12-21 11:57:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:57:25,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core
[2021-12-21 11:57:25,484 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-21 11:57:30,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:57:30,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-21 11:57:30,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-12-21 11:57:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467182800]
[2021-12-21 11:57:30,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467182800] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:57:30,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:57:30,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-12-21 11:57:30,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002635480]
[2021-12-21 11:57:30,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:57:30,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-12-21 11:57:30,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-12-21 11:57:30,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-12-21 11:57:30,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-12-21 11:57:30,303 INFO L87 Difference]: Start difference. First operand 104 states and 143 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:57:33,732 INFO L93 Difference]: Finished difference Result 193 states and 267 transitions.
[2021-12-21 11:57:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-12-21 11:57:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28
[2021-12-21 11:57:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:57:33,734 INFO L225 Difference]: With dead ends: 193
[2021-12-21 11:57:33,734 INFO L226 Difference]: Without dead ends: 113
[2021-12-21 11:57:33,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-12-21 11:57:33,736 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 14 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2021-12-21 11:57:33,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 784 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 37 Unchecked, 1.1s Time]
[2021-12-21 11:57:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states.
[2021-12-21 11:57:33,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104.
[2021-12-21 11:57:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 97 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:57:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions.
[2021-12-21 11:57:33,753 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 28
[2021-12-21 11:57:33,753 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:57:33,753 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions.
[2021-12-21 11:57:33,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions.
[2021-12-21 11:57:33,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-12-21 11:57:33,759 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:57:33,759 INFO L514 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, 1, 1]
[2021-12-21 11:57:33,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0
[2021-12-21 11:57:33,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-12-21 11:57:33,976 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:57:33,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:57:33,976 INFO L85 PathProgramCache]: Analyzing trace with hash 278599817, now seen corresponding path program 1 times
[2021-12-21 11:57:33,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-12-21 11:57:33,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527385013]
[2021-12-21 11:57:33,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:57:33,977 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-12-21 11:57:33,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-12-21 11:57:33,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-12-21 11:57:33,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-12-21 11:57:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:57:34,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-12-21 11:57:34,316 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-12-21 11:57:34,791 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13
[2021-12-21 11:57:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-21 11:57:36,678 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-12-21 11:57:36,678 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-12-21 11:57:36,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527385013]
[2021-12-21 11:57:36,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527385013] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-21 11:57:36,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-21 11:57:36,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-12-21 11:57:36,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262276930]
[2021-12-21 11:57:36,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-21 11:57:36,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-12-21 11:57:36,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-12-21 11:57:36,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-12-21 11:57:36,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-12-21 11:57:36,680 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-21 11:57:38,072 INFO L93 Difference]: Finished difference Result 188 states and 258 transitions.
[2021-12-21 11:57:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-12-21 11:57:38,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28
[2021-12-21 11:57:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-21 11:57:38,075 INFO L225 Difference]: With dead ends: 188
[2021-12-21 11:57:38,075 INFO L226 Difference]: Without dead ends: 107
[2021-12-21 11:57:38,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-12-21 11:57:38,078 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 13 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-12-21 11:57:38,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 517 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 16 Unchecked, 0.0s Time]
[2021-12-21 11:57:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states.
[2021-12-21 11:57:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 98.
[2021-12-21 11:57:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 91 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-12-21 11:57:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 132 transitions.
[2021-12-21 11:57:38,093 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 132 transitions. Word has length 28
[2021-12-21 11:57:38,094 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-12-21 11:57:38,094 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 132 transitions.
[2021-12-21 11:57:38,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-12-21 11:57:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 132 transitions.
[2021-12-21 11:57:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-12-21 11:57:38,095 INFO L506 BasicCegarLoop]: Found error trace
[2021-12-21 11:57:38,095 INFO L514 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, 1, 1]
[2021-12-21 11:57:38,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-12-21 11:57:38,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-12-21 11:57:38,304 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-21 11:57:38,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-12-21 11:57:38,304 INFO L85 PathProgramCache]: Analyzing trace with hash -170923191, now seen corresponding path program 1 times
[2021-12-21 11:57:38,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-12-21 11:57:38,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382973302]
[2021-12-21 11:57:38,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-21 11:57:38,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-12-21 11:57:38,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-12-21 11:57:38,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-12-21 11:57:38,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-12-21 11:57:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-21 11:57:38,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 10 conjunts are in the unsatisfiable core
[2021-12-21 11:57:38,636 INFO L286 TraceCheckSpWp]: Computing forward predicates...