/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_0683b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:39,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:39,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:40,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:40,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:40,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:40,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:40,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:40,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:40,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:40,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:40,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:40,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:40,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:40,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:40,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:40,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:40,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:40,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:40,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:40,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:40,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:40,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:40,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:40,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:40,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:40,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:40,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:40,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:40,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:40,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:40,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:40,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:40,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:40,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:40,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:40,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:40,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:40,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:40,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:40,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:40,073 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 01:01:40,128 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:40,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:40,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:40,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:40,130 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:40,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:40,130 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:40,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:40,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:40,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:40,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:40,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:40,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:40,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:40,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:40,134 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:40,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:40,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:40,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:40,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:40,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:40,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:40,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:40,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:40,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:40,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:40,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:40,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:40,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:40,137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:40,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:40,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:40,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:40,612 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:40,613 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:40,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2020-10-27 01:01:40,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2088fa59/6c0be1979213401baef340c04bcf0ff5/FLAGb69190dff [2020-10-27 01:01:41,297 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:41,298 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0683b.c [2020-10-27 01:01:41,311 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2088fa59/6c0be1979213401baef340c04bcf0ff5/FLAGb69190dff [2020-10-27 01:01:41,600 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2088fa59/6c0be1979213401baef340c04bcf0ff5 [2020-10-27 01:01:41,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:41,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:41,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:41,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:41,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:41,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:41" (1/1) ... [2020-10-27 01:01:41,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746546c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:41, skipping insertion in model container [2020-10-27 01:01:41,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:41" (1/1) ... [2020-10-27 01:01:41,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:41,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:41,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:41,962 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:42,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:42,062 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:42,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42 WrapperNode [2020-10-27 01:01:42,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:42,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:42,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:42,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:42,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (1/1) ... [2020-10-27 01:01:42,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:42,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:42,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:42,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:42,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (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 01:01:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:42,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:42,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-27 01:01:42,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 01:01:42,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 01:01:42,242 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:42,243 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:42,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 01:01:42,246 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:42,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:43,177 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:43,177 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-27 01:01:43,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:43 BoogieIcfgContainer [2020-10-27 01:01:43,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:43,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:43,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:43,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:43,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:41" (1/3) ... [2020-10-27 01:01:43,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562e7dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:43, skipping insertion in model container [2020-10-27 01:01:43,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:42" (2/3) ... [2020-10-27 01:01:43,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562e7dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:43, skipping insertion in model container [2020-10-27 01:01:43,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:43" (3/3) ... [2020-10-27 01:01:43,188 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683b.c [2020-10-27 01:01:43,200 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:43,205 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:43,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:43,250 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:43,250 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:43,250 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:43,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:43,251 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:43,251 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:43,251 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:43,251 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:43,274 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-10-27 01:01:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 01:01:43,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:43,284 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] [2020-10-27 01:01:43,284 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:43,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:43,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1563664449, now seen corresponding path program 1 times [2020-10-27 01:01:43,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:43,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053896563] [2020-10-27 01:01:43,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:43,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:43,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:43,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:43,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:44,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 01:01:44,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 01:01:44,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-10-27 01:01:44,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:44,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:44,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:44,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:01:44,516 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 01:01:44,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:44,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:44,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:44,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:44,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 01:01:44,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:44,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:44,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:44,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 01:01:44,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 01:01:44,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:44,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:44,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:44,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:44,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:44,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 01:01:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:44,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:44,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:44,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:44,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 01:01:44,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:01:44,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:44,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:01:44,613 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 01:01:44,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053896563] [2020-10-27 01:01:44,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:44,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:44,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503878466] [2020-10-27 01:01:44,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:44,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:44,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:44,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:44,639 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 4 states. [2020-10-27 01:01:45,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:45,169 INFO L93 Difference]: Finished difference Result 255 states and 393 transitions. [2020-10-27 01:01:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:45,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-27 01:01:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:45,182 INFO L225 Difference]: With dead ends: 255 [2020-10-27 01:01:45,182 INFO L226 Difference]: Without dead ends: 125 [2020-10-27 01:01:45,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-27 01:01:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-27 01:01:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-27 01:01:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2020-10-27 01:01:45,246 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 29 [2020-10-27 01:01:45,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:45,247 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2020-10-27 01:01:45,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:45,247 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2020-10-27 01:01:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 01:01:45,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:45,249 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] [2020-10-27 01:01:45,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:45,250 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:45,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1297905485, now seen corresponding path program 1 times [2020-10-27 01:01:45,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:45,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380115147] [2020-10-27 01:01:45,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 01:01:45,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:45,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-27 01:01:45,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:01:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 01:01:45,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 01:01:45,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:45,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:45,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 01:01:45,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:45,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:45,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 01:01:45,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 01:01:45,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:45,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:45,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 01:01:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:45,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:45,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:45,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 01:01:45,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:45,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 01:01:45,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:45,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 01:01:45,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:45,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:45,775 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 01:01:45,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380115147] [2020-10-27 01:01:45,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:45,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 01:01:45,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558075734] [2020-10-27 01:01:45,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 01:01:45,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:45,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 01:01:45,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:01:45,779 INFO L87 Difference]: Start difference. First operand 125 states and 166 transitions. Second operand 5 states. [2020-10-27 01:01:46,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:46,246 INFO L93 Difference]: Finished difference Result 227 states and 308 transitions. [2020-10-27 01:01:46,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 01:01:46,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-27 01:01:46,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:46,250 INFO L225 Difference]: With dead ends: 227 [2020-10-27 01:01:46,250 INFO L226 Difference]: Without dead ends: 125 [2020-10-27 01:01:46,251 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 01:01:46,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-27 01:01:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-27 01:01:46,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-27 01:01:46,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2020-10-27 01:01:46,270 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 32 [2020-10-27 01:01:46,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:46,270 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2020-10-27 01:01:46,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 01:01:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2020-10-27 01:01:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 01:01:46,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:46,272 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] [2020-10-27 01:01:46,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:46,273 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:46,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:46,273 INFO L82 PathProgramCache]: Analyzing trace with hash -665724313, now seen corresponding path program 1 times [2020-10-27 01:01:46,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:46,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512435030] [2020-10-27 01:01:46,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:46,334 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:46,334 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:46,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:01:46,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:46 BoogieIcfgContainer [2020-10-27 01:01:46,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:46,362 INFO L168 Benchmark]: Toolchain (without parser) took 4753.76 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 130.3 MB in the beginning and 136.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:46,362 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 156.2 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:46,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.84 ms. Allocated memory is still 156.2 MB. Free memory was 129.7 MB in the beginning and 114.3 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:46,364 INFO L168 Benchmark]: Boogie Preprocessor took 92.06 ms. Allocated memory is still 156.2 MB. Free memory was 114.3 MB in the beginning and 111.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:46,365 INFO L168 Benchmark]: RCFGBuilder took 1023.06 ms. Allocated memory is still 156.2 MB. Free memory was 111.1 MB in the beginning and 96.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:46,366 INFO L168 Benchmark]: TraceAbstraction took 3178.40 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 95.9 MB in the beginning and 136.5 MB in the end (delta: -40.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:46,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 156.2 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 446.84 ms. Allocated memory is still 156.2 MB. Free memory was 129.7 MB in the beginning and 114.3 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.06 ms. Allocated memory is still 156.2 MB. Free memory was 114.3 MB in the beginning and 111.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1023.06 ms. Allocated memory is still 156.2 MB. Free memory was 111.1 MB in the beginning and 96.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3178.40 ms. Allocated memory was 156.2 MB in the beginning and 187.7 MB in the end (delta: 31.5 MB). Free memory was 95.9 MB in the beginning and 136.5 MB in the end (delta: -40.6 MB). There was no memory consumed. 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 299. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L294] CALL, EXPR isinf_double(x) [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); [L294] RET, EXPR isinf_double(x) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] CALL, EXPR isfinite_double(y) [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); [L294] RET, EXPR isfinite_double(y) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y > 0.0 [L296] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [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; [L296] RET, EXPR __ieee754_atan2(y, x) [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == 0.0 && __signbit_double(res) == 0 [L299] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L300] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0683b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 324 SDtfs, 32 SDslu, 438 SDs, 0 SdLazy, 341 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 7440 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...