/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:00:35,412 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:00:35,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:00:35,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:00:35,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:00:35,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:00:35,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:00:35,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:00:35,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:00:35,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:00:35,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:00:35,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:00:35,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:00:35,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:00:35,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:00:35,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:00:35,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:00:35,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:00:35,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:00:35,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:00:35,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:00:35,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:00:35,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:00:35,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:00:35,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:00:35,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:00:35,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:00:35,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:00:35,539 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:00:35,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:00:35,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:00:35,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:00:35,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:00:35,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:00:35,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:00:35,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:00:35,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:00:35,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:00:35,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:00:35,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:00:35,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:00:35,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 17:00:35,605 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:00:35,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:00:35,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:00:35,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:00:35,608 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:00:35,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:00:35,609 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:00:35,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:00:35,609 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:00:35,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:00:35,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:00:35,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:00:35,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:00:35,612 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:00:35,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:00:35,612 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:00:35,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:00:35,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:00:35,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:00:35,613 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:00:35,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:00:35,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:00:35,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:00:35,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:00:35,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:00:35,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:00:35,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:00:35,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:00:35,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:00:35,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 17:00:36,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:00:36,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:00:36,108 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:00:36,110 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:00:36,110 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:00:36,111 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c
[2020-09-24 17:00:36,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3014f54e/6bbe03b75abc43ae8ce141af6b21ded1/FLAG64efa4243
[2020-09-24 17:00:36,724 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:00:36,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1032c.c
[2020-09-24 17:00:36,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3014f54e/6bbe03b75abc43ae8ce141af6b21ded1/FLAG64efa4243
[2020-09-24 17:00:37,033 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3014f54e/6bbe03b75abc43ae8ce141af6b21ded1
[2020-09-24 17:00:37,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:00:37,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:00:37,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:00:37,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:00:37,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:00:37,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37, skipping insertion in model container
[2020-09-24 17:00:37,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:00:37,110 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:00:37,350 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:00:37,355 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:00:37,397 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:00:37,426 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:00:37,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37 WrapperNode
[2020-09-24 17:00:37,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:00:37,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:00:37,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:00:37,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:00:37,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
[2020-09-24 17:00:37,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:00:37,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:00:37,600 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:00:37,603 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:00:37,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:00:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:00:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:00:37,679 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double
[2020-09-24 17:00:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double
[2020-09-24 17:00:37,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:00:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:00:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure round_double
[2020-09-24 17:00:37,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:00:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-09-24 17:00:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:00:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:00:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:00:37,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-09-24 17:00:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double
[2020-09-24 17:00:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:00:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:00:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:00:38,205 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:00:38,206 INFO L295 CfgBuilder]: Removed 6 assume(true) statements.
[2020-09-24 17:00:38,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:00:38 BoogieIcfgContainer
[2020-09-24 17:00:38,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:00:38,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:00:38,214 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:00:38,218 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:00:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:00:37" (1/3) ...
[2020-09-24 17:00:38,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7938245a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:00:38, skipping insertion in model container
[2020-09-24 17:00:38,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:00:37" (2/3) ...
[2020-09-24 17:00:38,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7938245a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:00:38, skipping insertion in model container
[2020-09-24 17:00:38,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:00:38" (3/3) ...
[2020-09-24 17:00:38,222 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032c.c
[2020-09-24 17:00:38,234 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:00:38,245 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:00:38,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:00:38,293 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:00:38,293 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:00:38,293 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:00:38,294 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:00:38,294 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:00:38,294 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:00:38,294 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:00:38,294 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:00:38,317 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states.
[2020-09-24 17:00:38,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-09-24 17:00:38,326 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:00:38,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:00:38,328 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:00:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:00:38,335 INFO L82 PathProgramCache]: Analyzing trace with hash 223530101, now seen corresponding path program 1 times
[2020-09-24 17:00:38,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:00:38,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498994394]
[2020-09-24 17:00:38,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:00:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:38,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:38,789 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:38,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-24 17:00:38,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:00:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310
[2020-09-24 17:00:38,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38
[2020-09-24 17:00:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:00:38,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:00:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:38,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:38,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:38,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 17:00:38,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:00:38,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-24 17:00:38,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:00:38,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:38,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:00:38,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2020-09-24 17:00:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:38,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:38,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:38,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:38,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18
[2020-09-24 17:00:38,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:00:38,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63
[2020-09-24 17:00:39,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:39,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:39,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7
[2020-09-24 17:00:39,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:39,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:00:39,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2020-09-24 17:00:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:00:39,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:00:39,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:00:39,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16
[2020-09-24 17:00:39,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:00:39,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39
[2020-09-24 17:00:39,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:00:39,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:00:39,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 17:00:39,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:00:39,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:00:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:00:39,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498994394]
[2020-09-24 17:00:39,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:00:39,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-09-24 17:00:39,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687478236]
[2020-09-24 17:00:39,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-09-24 17:00:39,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:00:39,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-09-24 17:00:39,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-09-24 17:00:39,095 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 4 states.
[2020-09-24 17:00:39,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:00:39,445 INFO L93 Difference]: Finished difference Result 202 states and 231 transitions.
[2020-09-24 17:00:39,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-09-24 17:00:39,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38
[2020-09-24 17:00:39,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:00:39,463 INFO L225 Difference]: With dead ends: 202
[2020-09-24 17:00:39,463 INFO L226 Difference]: Without dead ends: 101
[2020-09-24 17:00:39,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-09-24 17:00:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2020-09-24 17:00:39,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2020-09-24 17:00:39,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states.
[2020-09-24 17:00:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions.
[2020-09-24 17:00:39,531 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 38
[2020-09-24 17:00:39,532 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:00:39,532 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions.
[2020-09-24 17:00:39,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-09-24 17:00:39,532 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions.
[2020-09-24 17:00:39,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-09-24 17:00:39,536 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:00:39,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:00:39,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:00:39,537 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:00:39,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:00:39,538 INFO L82 PathProgramCache]: Analyzing trace with hash 32877217, now seen corresponding path program 1 times
[2020-09-24 17:00:39,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:00:39,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009655644]
[2020-09-24 17:00:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:00:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 17:00:39,671 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 17:00:39,672 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:00:39,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:00:39,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:00:39 BoogieIcfgContainer
[2020-09-24 17:00:39,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:00:39,739 INFO L168 Benchmark]: Toolchain (without parser) took 2687.51 ms. Allocated memory was 147.3 MB in the beginning and 235.9 MB in the end (delta: 88.6 MB). Free memory was 103.2 MB in the beginning and 188.5 MB in the end (delta: -85.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:39,741 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 17:00:39,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.90 ms. Allocated memory is still 147.3 MB. Free memory was 102.6 MB in the beginning and 91.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:39,744 INFO L168 Benchmark]: Boogie Preprocessor took 171.50 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.0 MB in the beginning and 181.1 MB in the end (delta: -90.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:39,744 INFO L168 Benchmark]: RCFGBuilder took 612.79 ms. Allocated memory is still 203.9 MB. Free memory was 180.4 MB in the beginning and 153.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB.
[2020-09-24 17:00:39,746 INFO L168 Benchmark]: TraceAbstraction took 1520.73 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 152.7 MB in the beginning and 188.5 MB in the end (delta: -35.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 17:00:39,756 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 372.90 ms. Allocated memory is still 147.3 MB. Free memory was 102.6 MB in the beginning and 91.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 171.50 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 91.0 MB in the beginning and 181.1 MB in the end (delta: -90.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 612.79 ms. Allocated memory is still 203.9 MB. Free memory was 180.4 MB in the beginning and 153.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1520.73 ms. Allocated memory was 203.9 MB in the beginning and 235.9 MB in the end (delta: 32.0 MB). Free memory was 152.7 MB in the beginning and 188.5 MB in the end (delta: -35.7 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of bitwiseOr at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 40, overapproximation of bitwiseAnd at line 72.
Possible FailurePath:
[L86] double x = 1.0 / 0.0;
[L87] CALL, EXPR round_double(x)
[L15] __int32_t msw, exponent_less_1023;
[L16] __uint32_t lsw;
[L18] ieee_double_shape_type ew_u;
[L19] ew_u.value = (x)
[L20] EXPR ew_u.parts.msw
[L20] (msw) = ew_u.parts.msw
[L21] EXPR ew_u.parts.lsw
[L21] (lsw) = ew_u.parts.lsw
[L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023
[L24] COND FALSE !(exponent_less_1023 < 20)
[L38] COND TRUE exponent_less_1023 > 51
[L39] COND TRUE exponent_less_1023 == 1024
[L40] return x + x;
[L87] RET, EXPR round_double(x)
[L87] double res = round_double(x);
[L90] CALL, EXPR isinf_double(res)
[L65] __int32_t hx, lx;
[L67] ieee_double_shape_type ew_u;
[L68] ew_u.value = (x)
[L69] EXPR ew_u.parts.msw
[L69] (hx) = ew_u.parts.msw
[L70] EXPR ew_u.parts.lsw
[L70] (lx) = ew_u.parts.lsw
[L72] hx &= 0x7fffffff
[L73] hx |= (__uint32_t)(lx | (-lx)) >> 31
[L74] hx = 0x7ff00000 - hx
[L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31);
[L90] RET, EXPR isinf_double(res)
[L90] COND TRUE !isinf_double(res)
[L91] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 17 SDslu, 82 SDs, 0 SdLazy, 124 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 2590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...