/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/float_req_bl_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:25:14,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:25:14,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:25:14,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:25:14,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:25:14,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:25:14,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:25:14,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:25:14,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:25:14,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:25:14,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:25:14,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:25:14,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:25:14,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:25:14,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:25:14,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:25:14,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:25:14,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:25:14,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:25:14,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:25:14,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:25:14,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:25:14,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:25:14,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:25:14,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:25:14,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:25:14,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:25:14,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:25:14,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:25:14,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:25:14,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:25:14,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:25:14,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:25:14,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:25:14,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:25:14,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:25:14,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:25:14,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:25:14,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:25:14,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:25:14,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:25:14,407 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 [2020-09-25 05:25:14,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:25:14,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:25:14,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:25:14,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:25:14,471 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:25:14,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:25:14,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:25:14,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:25:14,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:25:14,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:25:14,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:25:14,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:25:14,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:25:14,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:25:14,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:25:14,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:25:14,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:25:14,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:25:14,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:25:14,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:25:14,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:25:14,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:25:14,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:25:14,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:25:14,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:25:14,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:25:14,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:25:14,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:25:14,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:25:14,476 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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:25:14,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:25:15,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:25:15,021 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:25:15,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:25:15,023 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:25:15,024 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1131b.c [2020-09-25 05:25:15,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ec5d5138/bfe52942e7174758a30b52b81ee251c9/FLAG1c24a5f7a [2020-09-25 05:25:15,685 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:25:15,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1131b.c [2020-09-25 05:25:15,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ec5d5138/bfe52942e7174758a30b52b81ee251c9/FLAG1c24a5f7a [2020-09-25 05:25:16,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ec5d5138/bfe52942e7174758a30b52b81ee251c9 [2020-09-25 05:25:16,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:25:16,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:25:16,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:25:16,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:25:16,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:25:16,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49afba18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16, skipping insertion in model container [2020-09-25 05:25:16,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:25:16,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:25:16,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:25:16,418 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:25:16,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:25:16,580 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:25:16,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16 WrapperNode [2020-09-25 05:25:16,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:25:16,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:25:16,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:25:16,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:25:16,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (1/1) ... [2020-09-25 05:25:16,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:25:16,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:25:16,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:25:16,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:25:16,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (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 [2020-09-25 05:25:16,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:25:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:25:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2020-09-25 05:25:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-09-25 05:25:16,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:25:16,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:25:16,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-09-25 05:25:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2020-09-25 05:25:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:25:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 05:25:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:25:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:25:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 05:25:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:25:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-09-25 05:25:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:25:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:25:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 05:25:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:25:17,342 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:25:17,342 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-09-25 05:25:17,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:25:17 BoogieIcfgContainer [2020-09-25 05:25:17,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:25:17,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:25:17,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:25:17,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:25:17,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:25:16" (1/3) ... [2020-09-25 05:25:17,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb16116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:25:17, skipping insertion in model container [2020-09-25 05:25:17,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:16" (2/3) ... [2020-09-25 05:25:17,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb16116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:25:17, skipping insertion in model container [2020-09-25 05:25:17,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:25:17" (3/3) ... [2020-09-25 05:25:17,362 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2020-09-25 05:25:17,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:25:17,385 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:25:17,407 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:25:17,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:25:17,437 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:25:17,437 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:25:17,437 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:25:17,437 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:25:17,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:25:17,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:25:17,438 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:25:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-09-25 05:25:17,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 05:25:17,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:17,479 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] [2020-09-25 05:25:17,479 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash -309473205, now seen corresponding path program 1 times [2020-09-25 05:25:17,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:17,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442155661] [2020-09-25 05:25:17,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:17,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:17,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:17,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:17,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 05:25:17,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:25:17,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 05:25:17,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:17,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:17,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:17,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 05:25:17,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:17,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:25:18,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:18,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:18,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:25:18,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:18,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 05:25:18,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:18,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:18,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:18,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:18,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:18,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 05:25:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:18,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:18,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:18,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 05:25:18,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:25:18,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:25:18,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:18,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:18,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 05:25:18,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:18,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:18,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-09-25 05:25:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:18,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:18,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:18,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 05:25:18,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:25:18,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:25:18,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:18,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:18,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 05:25:18,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:18,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:18,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442155661] [2020-09-25 05:25:18,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:18,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:25:18,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818501065] [2020-09-25 05:25:18,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:25:18,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:18,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:25:18,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:25:18,257 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 4 states. [2020-09-25 05:25:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:18,732 INFO L93 Difference]: Finished difference Result 306 states and 369 transitions. [2020-09-25 05:25:18,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:25:18,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2020-09-25 05:25:18,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:18,751 INFO L225 Difference]: With dead ends: 306 [2020-09-25 05:25:18,751 INFO L226 Difference]: Without dead ends: 155 [2020-09-25 05:25:18,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:25:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-09-25 05:25:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-09-25 05:25:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-25 05:25:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 170 transitions. [2020-09-25 05:25:18,824 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 170 transitions. Word has length 49 [2020-09-25 05:25:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:18,825 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 170 transitions. [2020-09-25 05:25:18,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:25:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 170 transitions. [2020-09-25 05:25:18,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-25 05:25:18,829 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:18,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:18,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:25:18,830 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:18,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:18,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1032631156, now seen corresponding path program 1 times [2020-09-25 05:25:18,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:18,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486601434] [2020-09-25 05:25:18,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:25:18,901 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:25:18,901 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:25:18,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:25:18,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:25:18 BoogieIcfgContainer [2020-09-25 05:25:18,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:25:18,937 INFO L168 Benchmark]: Toolchain (without parser) took 2906.68 ms. Allocated memory was 140.0 MB in the beginning and 236.5 MB in the end (delta: 96.5 MB). Free memory was 103.2 MB in the beginning and 153.1 MB in the end (delta: -49.9 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:18,938 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:25:18,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.51 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 179.6 MB in the end (delta: -77.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:18,941 INFO L168 Benchmark]: Boogie Preprocessor took 62.61 ms. Allocated memory is still 202.9 MB. Free memory was 179.6 MB in the beginning and 176.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:18,941 INFO L168 Benchmark]: RCFGBuilder took 705.68 ms. Allocated memory is still 202.9 MB. Free memory was 176.9 MB in the beginning and 140.4 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:18,942 INFO L168 Benchmark]: TraceAbstraction took 1582.29 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 139.8 MB in the beginning and 153.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:18,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 541.51 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.6 MB in the beginning and 179.6 MB in the end (delta: -77.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.61 ms. Allocated memory is still 202.9 MB. Free memory was 179.6 MB in the beginning and 176.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 705.68 ms. Allocated memory is still 202.9 MB. Free memory was 176.9 MB in the beginning and 140.4 MB in the end (delta: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1582.29 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 139.8 MB in the beginning and 153.1 MB in the end (delta: -13.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 135]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 134, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseXor at line 31. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L126] float x = __VERIFIER_nondet_float(); [L127] float y = -1.0f / 0.0f; [L129] CALL isfinite_float(x) [L109] __int32_t ix; [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (ix) = gf_u.word [L115] ix &= 0x7fffffff [L116] return (((ix) < 0x7f800000L)); [L129] RET isfinite_float(x) [L129] COND TRUE isfinite_float(x) [L131] CALL, EXPR fmod_float(x, y) [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); [L131] RET, EXPR fmod_float(x, y) [L131] float res = fmod_float(x, y); [L134] COND TRUE res != x [L135] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 162 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 31 SDslu, 128 SDs, 0 SdLazy, 190 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=162occurred 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, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 4464 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...