/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=0.8 --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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:42:27,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:42:27,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:42:27,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:42:27,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:42:27,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:42:27,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:42:27,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:42:27,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:42:27,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:42:27,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:42:27,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:42:27,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:42:27,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:42:27,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:42:27,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:42:27,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:42:27,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:42:27,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:42:27,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:42:27,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:42:27,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:42:27,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:42:27,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:42:27,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:42:27,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:42:27,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:42:27,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:42:27,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:42:27,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:42:27,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:42:27,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:42:27,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:42:27,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:42:27,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:42:27,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:42:27,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:42:27,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:42:27,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:42:27,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:42:27,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:42:27,152 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 07:42:27,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:42:27,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:42:27,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:42:27,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:42:27,199 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:42:27,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:42:27,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:42:27,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:42:27,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:42:27,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:42:27,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:42:27,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:42:27,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:42:27,203 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:42:27,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:42:27,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:42:27,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:42:27,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:42:27,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:42:27,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:42:27,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:42:27,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:42:27,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:42:27,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:42:27,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:42:27,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:42:27,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:42:27,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:42:27,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:42:27,206 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:42:27,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:42:27,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:42:27,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:42:27,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:42:27,743 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:42:27,744 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 07:42:27,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9ef49f50/ff1107ffa5f04c6d89481238ac2c582f/FLAGcf0806f6c [2020-09-25 07:42:28,429 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:42:28,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 07:42:28,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9ef49f50/ff1107ffa5f04c6d89481238ac2c582f/FLAGcf0806f6c [2020-09-25 07:42:28,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9ef49f50/ff1107ffa5f04c6d89481238ac2c582f [2020-09-25 07:42:28,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:42:28,760 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:42:28,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:42:28,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:42:28,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:42:28,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:42:28" (1/1) ... [2020-09-25 07:42:28,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:28, skipping insertion in model container [2020-09-25 07:42:28,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:42:28" (1/1) ... [2020-09-25 07:42:28,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:42:28,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:42:29,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:42:29,230 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:42:29,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:42:29,414 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:42:29,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29 WrapperNode [2020-09-25 07:42:29,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:42:29,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:42:29,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:42:29,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:42:29,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (1/1) ... [2020-09-25 07:42:29,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:42:29,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:42:29,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:42:29,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:42:29,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (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 07:42:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:42:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:42:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 07:42:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-25 07:42:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-25 07:42:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:42:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:42:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 07:42:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 07:42:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-25 07:42:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:42:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 07:42:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:42:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:42:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 07:42:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:42:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-25 07:42:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:42:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:42:29,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 07:42:29,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:42:30,300 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:42:30,301 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-25 07:42:30,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:42:30 BoogieIcfgContainer [2020-09-25 07:42:30,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:42:30,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:42:30,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:42:30,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:42:30,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:42:28" (1/3) ... [2020-09-25 07:42:30,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb78df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:42:30, skipping insertion in model container [2020-09-25 07:42:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:42:29" (2/3) ... [2020-09-25 07:42:30,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb78df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:42:30, skipping insertion in model container [2020-09-25 07:42:30,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:42:30" (3/3) ... [2020-09-25 07:42:30,320 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-25 07:42:30,333 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:42:30,344 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:42:30,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:42:30,404 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:42:30,404 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:42:30,405 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:42:30,405 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:42:30,405 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:42:30,405 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:42:30,406 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:42:30,406 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:42:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-25 07:42:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:42:30,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:30,450 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] [2020-09-25 07:42:30,451 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-25 07:42:30,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:30,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618976832] [2020-09-25 07:42:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:30,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:30,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:30,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 07:42:31,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:42:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 407 [2020-09-25 07:42:31,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 07:42:31,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:42:31,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:42:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:42:31,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:31,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:42:31,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:42:31,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 07:42:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:42:31,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:42:31,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:42:31,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 07:42:31,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 07:42:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:42:31,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:42:31,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:42:31,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 07:42:31,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:42:31,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:42:31,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:42:31,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:42:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:42:31,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:42:31,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:42:31,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:42:31,293 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 07:42:31,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618976832] [2020-09-25 07:42:31,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:42:31,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:42:31,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325813815] [2020-09-25 07:42:31,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:42:31,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:42:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:42:31,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:42:31,328 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-25 07:42:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:42:31,886 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-25 07:42:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:42:31,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 07:42:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:42:31,905 INFO L225 Difference]: With dead ends: 414 [2020-09-25 07:42:31,905 INFO L226 Difference]: Without dead ends: 209 [2020-09-25 07:42:31,912 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 [2020-09-25 07:42:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-25 07:42:31,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-25 07:42:31,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-25 07:42:31,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-25 07:42:31,980 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-25 07:42:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:42:31,980 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-25 07:42:31,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:42:31,981 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-25 07:42:31,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 07:42:31,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:42:31,985 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:42:31,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:42:31,985 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:42:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:42:31,986 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-25 07:42:31,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:42:31,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716829468] [2020-09-25 07:42:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:42:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:42:32,062 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:42:32,062 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:42:32,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:42:32,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:42:32 BoogieIcfgContainer [2020-09-25 07:42:32,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:42:32,100 INFO L168 Benchmark]: Toolchain (without parser) took 3342.24 ms. Allocated memory was 140.0 MB in the beginning and 236.5 MB in the end (delta: 96.5 MB). Free memory was 101.8 MB in the beginning and 120.4 MB in the end (delta: -18.6 MB). Peak memory consumption was 77.9 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:32,101 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 07:42:32,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.27 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 178.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:32,103 INFO L168 Benchmark]: Boogie Preprocessor took 70.53 ms. Allocated memory is still 202.9 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:32,104 INFO L168 Benchmark]: RCFGBuilder took 822.57 ms. Allocated memory is still 202.9 MB. Free memory was 175.4 MB in the beginning and 128.1 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:32,105 INFO L168 Benchmark]: TraceAbstraction took 1785.27 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 127.4 MB in the beginning and 120.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:42:32,109 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.27 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 178.0 MB in the end (delta: -76.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.53 ms. Allocated memory is still 202.9 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 822.57 ms. Allocated memory is still 202.9 MB. Free memory was 175.4 MB in the beginning and 128.1 MB in the end (delta: 47.3 MB). Peak memory consumption was 47.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1785.27 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 127.4 MB in the beginning and 120.4 MB in the end (delta: 7.1 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=216occurred 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, 0.6s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 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...