/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0684a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:41,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:41,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:41,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:41,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:41,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:41,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:41,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:41,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:41,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:41,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:41,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:41,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:41,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:41,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:41,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:41,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:41,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:41,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:41,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:41,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:41,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:41,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:41,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:41,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:41,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:41,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:41,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:41,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:41,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:41,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:41,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:41,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:41,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:41,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:41,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:41,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:41,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:41,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:41,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:41,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:41,164 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 [2020-10-27 01:01:41,191 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:41,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:41,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:41,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:41,193 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:41,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:41,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:41,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:41,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:41,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:41,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:41,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:41,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:41,195 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:41,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:41,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:41,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:41,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:41,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:41,196 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:41,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:41,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:41,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:41,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:41,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:41,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:41,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:41,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:41,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:41,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:41,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:41,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:41,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:41,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:41,645 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:41,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0684a.c [2020-10-27 01:01:41,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fbc9c060/ec8762940a3041ba8eaffe473515aada/FLAG4da84fafc [2020-10-27 01:01:42,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:42,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0684a.c [2020-10-27 01:01:42,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fbc9c060/ec8762940a3041ba8eaffe473515aada/FLAG4da84fafc [2020-10-27 01:01:42,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fbc9c060/ec8762940a3041ba8eaffe473515aada [2020-10-27 01:01:42,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:42,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:42,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:42,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:42,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:42,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490ed2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42, skipping insertion in model container [2020-10-27 01:01:42,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:42,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:43,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:43,108 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:43,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:43,243 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:43,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43 WrapperNode [2020-10-27 01:01:43,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:43,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:43,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:43,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:43,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (1/1) ... [2020-10-27 01:01:43,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:43,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:43,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:43,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:43,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (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 [2020-10-27 01:01:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:43,472 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-27 01:01:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 01:01:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:43,475 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:43,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:43,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:44,402 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:44,403 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-27 01:01:44,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:44 BoogieIcfgContainer [2020-10-27 01:01:44,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:44,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:44,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:44,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:44,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:42" (1/3) ... [2020-10-27 01:01:44,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76723b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:44, skipping insertion in model container [2020-10-27 01:01:44,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:43" (2/3) ... [2020-10-27 01:01:44,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76723b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:44, skipping insertion in model container [2020-10-27 01:01:44,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:44" (3/3) ... [2020-10-27 01:01:44,421 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2020-10-27 01:01:44,434 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:44,439 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:44,454 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:44,485 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:44,485 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:44,485 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:44,485 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:44,485 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:44,486 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:44,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:44,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states. [2020-10-27 01:01:44,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-27 01:01:44,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:44,517 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] [2020-10-27 01:01:44,517 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:44,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:44,524 INFO L82 PathProgramCache]: Analyzing trace with hash -986197150, now seen corresponding path program 1 times [2020-10-27 01:01:44,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:44,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711409260] [2020-10-27 01:01:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:44,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-27 01:01:45,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:01:45,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 787 [2020-10-27 01:01:45,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:01:45,715 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 01:01:45,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:45,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:45,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 01:01:45,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:45,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:45,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:01:45,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:45,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:01:45,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:45,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:01:45,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 01:01:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:45,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:01:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 01:01:45,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:45,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:01:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:01:45,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711409260] [2020-10-27 01:01:45,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:45,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:45,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929020417] [2020-10-27 01:01:45,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:45,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:45,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:45,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:45,943 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 4 states. [2020-10-27 01:01:46,114 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 01:01:46,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:46,925 INFO L93 Difference]: Finished difference Result 237 states and 368 transitions. [2020-10-27 01:01:46,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:46,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-27 01:01:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:46,938 INFO L225 Difference]: With dead ends: 237 [2020-10-27 01:01:46,939 INFO L226 Difference]: Without dead ends: 116 [2020-10-27 01:01:46,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:46,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-27 01:01:46,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-27 01:01:46,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-27 01:01:47,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 156 transitions. [2020-10-27 01:01:47,004 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 156 transitions. Word has length 28 [2020-10-27 01:01:47,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:47,005 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 156 transitions. [2020-10-27 01:01:47,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 156 transitions. [2020-10-27 01:01:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-27 01:01:47,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:47,007 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] [2020-10-27 01:01:47,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:47,008 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:47,008 INFO L82 PathProgramCache]: Analyzing trace with hash -2111058175, now seen corresponding path program 1 times [2020-10-27 01:01:47,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:47,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548999064] [2020-10-27 01:01:47,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:47,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:47,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 01:01:47,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 01:01:47,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:01:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 01:01:47,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:01:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:47,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:47,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:47,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:47,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:47,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:47,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:01:47,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:47,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:47,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:47,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:47,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:47,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:47,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:47,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 01:01:47,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:47,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:01:47,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:47,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:47,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:47,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:01:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:47,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:47,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:47,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 01:01:47,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:47,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 01:01:47,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:47,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:47,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:01:47,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:47,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:01:47,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548999064] [2020-10-27 01:01:47,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:47,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:01:47,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983954096] [2020-10-27 01:01:47,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:01:47,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:47,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:01:47,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:47,533 INFO L87 Difference]: Start difference. First operand 116 states and 156 transitions. Second operand 5 states. [2020-10-27 01:01:47,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:47,992 INFO L93 Difference]: Finished difference Result 209 states and 288 transitions. [2020-10-27 01:01:47,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 01:01:47,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-27 01:01:47,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:47,996 INFO L225 Difference]: With dead ends: 209 [2020-10-27 01:01:47,996 INFO L226 Difference]: Without dead ends: 116 [2020-10-27 01:01:47,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 01:01:47,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-27 01:01:48,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-27 01:01:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-27 01:01:48,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 155 transitions. [2020-10-27 01:01:48,034 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 155 transitions. Word has length 31 [2020-10-27 01:01:48,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:48,035 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 155 transitions. [2020-10-27 01:01:48,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:01:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 155 transitions. [2020-10-27 01:01:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 01:01:48,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:48,036 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] [2020-10-27 01:01:48,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:48,037 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:48,037 INFO L82 PathProgramCache]: Analyzing trace with hash 2032723797, now seen corresponding path program 1 times [2020-10-27 01:01:48,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:48,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563981172] [2020-10-27 01:01:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:48,118 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:48,118 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:48,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:01:48,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:48 BoogieIcfgContainer [2020-10-27 01:01:48,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:48,151 INFO L168 Benchmark]: Toolchain (without parser) took 5420.87 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 144.2 MB in the beginning and 149.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:48,151 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 162.5 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:48,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.64 ms. Allocated memory is still 162.5 MB. Free memory was 143.8 MB in the beginning and 143.6 MB in the end (delta: 153.2 kB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:48,153 INFO L168 Benchmark]: Boogie Preprocessor took 146.53 ms. Allocated memory is still 162.5 MB. Free memory was 143.6 MB in the beginning and 140.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:48,154 INFO L168 Benchmark]: RCFGBuilder took 1009.66 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 140.2 MB in the beginning and 171.0 MB in the end (delta: -30.8 MB). Peak memory consumption was 48.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:48,155 INFO L168 Benchmark]: TraceAbstraction took 3735.69 ms. Allocated memory is still 195.0 MB. Free memory was 170.5 MB in the beginning and 149.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:48,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 162.5 MB. Free memory is still 134.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 510.64 ms. Allocated memory is still 162.5 MB. Free memory was 143.8 MB in the beginning and 143.6 MB in the end (delta: 153.2 kB). Peak memory consumption was 18.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.53 ms. Allocated memory is still 162.5 MB. Free memory was 143.6 MB in the beginning and 140.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1009.66 ms. Allocated memory was 162.5 MB in the beginning and 195.0 MB in the end (delta: 32.5 MB). Free memory was 140.2 MB in the beginning and 171.0 MB in the end (delta: -30.8 MB). Peak memory consumption was 48.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3735.69 ms. Allocated memory is still 195.0 MB. Free memory was 170.5 MB in the beginning and 149.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L278] double x = __VERIFIER_nondet_double(); [L279] double y = 1.0 / 0.0; [L282] CALL, EXPR isfinite_double(x) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L282] RET, EXPR isfinite_double(x) [L282] isfinite_double(x) && isinf_double(y) [L282] CALL, EXPR isinf_double(y) [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L282] RET, EXPR isinf_double(y) [L282] isfinite_double(x) && isinf_double(y) [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L284] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L284] RET, EXPR __ieee754_atan2(y, x) [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != pi_o_2 [L288] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0684a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 306 SDtfs, 28 SDslu, 414 SDs, 0 SdLazy, 321 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 7131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...