/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=DEEPEST --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_0683a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:28,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:28,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:28,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:28,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:28,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:28,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:28,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:28,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:28,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:28,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:28,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:28,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:28,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:28,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:28,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:28,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:28,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:28,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:28,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:28,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:28,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:28,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:28,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:28,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:28,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:28,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:28,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:28,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:28,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:28,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:28,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:28,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:28,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:28,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:28,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:28,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:28,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:28,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:28,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:28,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:28,238 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 19:42:28,293 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:28,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:28,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:28,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:28,299 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:28,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:28,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:28,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:28,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:28,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:28,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:28,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:28,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:28,302 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:28,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:28,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:28,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:28,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:28,303 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:28,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:28,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:28,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:28,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:28,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:28,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:28,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:28,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:28,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:28,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:28,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:28,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:28,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:28,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:28,795 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:28,796 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:28,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2020-10-27 19:42:28,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1a3904b6/1b0af9e10dc44202afeaa879be3372c2/FLAG819869bc8 [2020-10-27 19:42:29,622 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:29,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2020-10-27 19:42:29,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1a3904b6/1b0af9e10dc44202afeaa879be3372c2/FLAG819869bc8 [2020-10-27 19:42:29,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1a3904b6/1b0af9e10dc44202afeaa879be3372c2 [2020-10-27 19:42:29,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:29,909 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:29,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:29,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:29,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:29,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:29" (1/1) ... [2020-10-27 19:42:29,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad7ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:29, skipping insertion in model container [2020-10-27 19:42:29,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:29" (1/1) ... [2020-10-27 19:42:29,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:29,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:30,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:30,315 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:30,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:30,487 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:30,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30 WrapperNode [2020-10-27 19:42:30,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:30,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:30,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:30,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:30,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (1/1) ... [2020-10-27 19:42:30,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:30,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:30,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:30,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:30,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (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 19:42:30,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:30,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:30,732 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:30,733 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2020-10-27 19:42:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 19:42:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 19:42:30,734 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:30,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:30,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:30,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:30,738 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2020-10-27 19:42:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 19:42:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 19:42:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:30,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:30,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:31,758 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:31,758 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-27 19:42:31,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:31 BoogieIcfgContainer [2020-10-27 19:42:31,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:31,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:31,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:31,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:31,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:29" (1/3) ... [2020-10-27 19:42:31,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55828475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:31, skipping insertion in model container [2020-10-27 19:42:31,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:30" (2/3) ... [2020-10-27 19:42:31,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55828475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:31, skipping insertion in model container [2020-10-27 19:42:31,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:31" (3/3) ... [2020-10-27 19:42:31,770 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2020-10-27 19:42:31,782 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:31,788 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:31,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:31,830 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:31,831 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:31,831 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:31,831 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:31,831 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:31,831 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:31,831 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:31,832 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:31,853 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-10-27 19:42:31,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 19:42:31,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:31,862 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 19:42:31,862 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:31,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:31,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1563664449, now seen corresponding path program 1 times [2020-10-27 19:42:31,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:31,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6149567] [2020-10-27 19:42:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:32,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:32,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:32,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:32,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:33,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:33,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 19:42:33,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 19:42:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-10-27 19:42:33,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:33,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:33,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 19:42:33,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:33,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:33,228 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 19:42:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:33,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:33,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:33,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:33,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 19:42:33,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:33,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:33,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:33,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:33,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:42:33,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 19:42:33,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:42:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:33,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:33,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 19:42:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:33,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:33,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:33,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:33,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:33,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:33,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:42:33,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:33,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:33,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:33,329 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 19:42:33,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6149567] [2020-10-27 19:42:33,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:33,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:33,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415215631] [2020-10-27 19:42:33,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:33,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:33,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:33,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:33,357 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 4 states. [2020-10-27 19:42:34,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:34,020 INFO L93 Difference]: Finished difference Result 255 states and 393 transitions. [2020-10-27 19:42:34,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:34,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-10-27 19:42:34,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:34,044 INFO L225 Difference]: With dead ends: 255 [2020-10-27 19:42:34,044 INFO L226 Difference]: Without dead ends: 125 [2020-10-27 19:42:34,056 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 19:42:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-27 19:42:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-27 19:42:34,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-27 19:42:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2020-10-27 19:42:34,124 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 29 [2020-10-27 19:42:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:34,124 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2020-10-27 19:42:34,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2020-10-27 19:42:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 19:42:34,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:34,131 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 19:42:34,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:34,132 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:34,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:34,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1297905485, now seen corresponding path program 1 times [2020-10-27 19:42:34,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:34,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510840164] [2020-10-27 19:42:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:34,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:34,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:34,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 19:42:34,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:34,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-27 19:42:34,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 19:42:34,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-27 19:42:34,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 19:42:34,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:34,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:34,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:34,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:34,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:34,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:34,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 19:42:34,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:34,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:34,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:34,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:34,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:34,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:34,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 19:42:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:34,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 19:42:34,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:34,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:34,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 19:42:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:34,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:34,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:34,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 19:42:34,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-27 19:42:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 19:42:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:34,887 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 19:42:34,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510840164] [2020-10-27 19:42:34,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:34,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 19:42:34,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763195290] [2020-10-27 19:42:34,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 19:42:34,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:34,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 19:42:34,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:42:34,892 INFO L87 Difference]: Start difference. First operand 125 states and 166 transitions. Second operand 5 states. [2020-10-27 19:42:35,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:35,483 INFO L93 Difference]: Finished difference Result 227 states and 308 transitions. [2020-10-27 19:42:35,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 19:42:35,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-27 19:42:35,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:35,487 INFO L225 Difference]: With dead ends: 227 [2020-10-27 19:42:35,487 INFO L226 Difference]: Without dead ends: 125 [2020-10-27 19:42:35,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 19:42:35,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-27 19:42:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-27 19:42:35,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-27 19:42:35,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2020-10-27 19:42:35,508 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 32 [2020-10-27 19:42:35,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:35,509 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2020-10-27 19:42:35,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 19:42:35,509 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2020-10-27 19:42:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-27 19:42:35,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:35,511 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 19:42:35,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:35,511 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:35,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:35,512 INFO L82 PathProgramCache]: Analyzing trace with hash -665724313, now seen corresponding path program 1 times [2020-10-27 19:42:35,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:35,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064424523] [2020-10-27 19:42:35,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:35,588 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:35,588 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:35,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 19:42:35,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:35 BoogieIcfgContainer [2020-10-27 19:42:35,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:35,616 INFO L168 Benchmark]: Toolchain (without parser) took 5712.10 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 128.0 MB in the beginning and 106.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:35,617 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 153.1 MB. Free memory was 126.5 MB in the beginning and 126.4 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:35,618 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.84 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 111.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:35,619 INFO L168 Benchmark]: Boogie Preprocessor took 148.63 ms. Allocated memory is still 153.1 MB. Free memory was 111.7 MB in the beginning and 108.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:35,620 INFO L168 Benchmark]: RCFGBuilder took 1121.56 ms. Allocated memory is still 153.1 MB. Free memory was 108.3 MB in the beginning and 91.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:35,621 INFO L168 Benchmark]: TraceAbstraction took 3851.91 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 90.7 MB in the beginning and 106.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:35,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 153.1 MB. Free memory was 126.5 MB in the beginning and 126.4 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 574.84 ms. Allocated memory is still 153.1 MB. Free memory was 127.4 MB in the beginning and 111.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 148.63 ms. Allocated memory is still 153.1 MB. Free memory was 111.7 MB in the beginning and 108.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1121.56 ms. Allocated memory is still 153.1 MB. Free memory was 108.3 MB in the beginning and 91.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3851.91 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 90.7 MB in the beginning and 106.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.0 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 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) == 1 [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0683a.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: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 324 SDtfs, 32 SDslu, 438 SDs, 0 SdLazy, 341 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s 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=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, 0.2s SatisfiabilityAnalysisTime, 1.9s 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...