/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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-benchs/sqrt_Householder_pseudoconstant.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:05:12,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:05:12,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:05:12,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:05:12,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:05:12,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:05:12,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:05:12,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:05:12,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:05:12,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:05:12,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:05:12,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:05:12,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:05:12,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:05:12,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:05:12,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:05:12,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:05:12,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:05:12,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:05:12,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:05:12,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:05:12,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:05:12,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:05:12,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:05:12,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:05:12,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:05:12,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:05:12,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:05:12,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:05:12,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:05:12,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:05:12,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:05:12,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:05:12,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:05:12,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:05:12,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:05:12,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:05:12,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:05:12,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:05:12,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:05:12,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:05:12,826 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 [2020-10-29 09:05:12,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:05:12,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:05:12,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:05:12,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:05:12,862 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:05:12,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:05:12,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:05:12,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:05:12,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:05:12,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:05:12,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:05:12,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:05:12,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:05:12,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:05:12,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:05:12,865 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:05:12,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:05:12,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:05:12,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:05:12,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:05:12,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:05:12,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:05:12,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:05:12,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:05:12,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:05:12,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:05:12,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:05:12,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:05:12,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:05:12,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:05:13,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:05:13,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:05:13,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:05:13,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:05:13,294 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:05:13,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c [2020-10-29 09:05:13,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69e35f163/848410fee7364350986062bd9eab3b29/FLAG576b7c20f [2020-10-29 09:05:14,076 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:05:14,076 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/sqrt_Householder_pseudoconstant.c [2020-10-29 09:05:14,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69e35f163/848410fee7364350986062bd9eab3b29/FLAG576b7c20f [2020-10-29 09:05:14,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/69e35f163/848410fee7364350986062bd9eab3b29 [2020-10-29 09:05:14,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:05:14,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:05:14,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:05:14,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:05:14,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:05:14,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c27db08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14, skipping insertion in model container [2020-10-29 09:05:14,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:05:14,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:05:14,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:05:14,663 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:05:14,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:05:14,732 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:05:14,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14 WrapperNode [2020-10-29 09:05:14,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:05:14,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:05:14,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:05:14,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:05:14,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (1/1) ... [2020-10-29 09:05:14,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:05:14,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:05:14,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:05:14,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:05:14,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (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 [2020-10-29 09:05:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:05:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:05:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:05:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 09:05:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 09:05:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure SqrtR [2020-10-29 09:05:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:05:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:05:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:05:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:05:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:05:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:05:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 09:05:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:05:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure SqrtR [2020-10-29 09:05:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:05:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:05:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:05:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:05:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:05:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:05:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:05:15,447 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:05:15,447 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 09:05:15,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:05:15 BoogieIcfgContainer [2020-10-29 09:05:15,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:05:15,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:05:15,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:05:15,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:05:15,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:05:14" (1/3) ... [2020-10-29 09:05:15,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7333b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:05:15, skipping insertion in model container [2020-10-29 09:05:15,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:05:14" (2/3) ... [2020-10-29 09:05:15,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7333b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:05:15, skipping insertion in model container [2020-10-29 09:05:15,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:05:15" (3/3) ... [2020-10-29 09:05:15,458 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_pseudoconstant.c [2020-10-29 09:05:15,471 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:05:15,475 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:05:15,491 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:05:15,520 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:05:15,520 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:05:15,521 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:05:15,521 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:05:15,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:05:15,521 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:05:15,521 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:05:15,521 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:05:15,542 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-29 09:05:15,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-29 09:05:15,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:05:15,550 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] [2020-10-29 09:05:15,550 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:05:15,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:05:15,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1917595415, now seen corresponding path program 1 times [2020-10-29 09:05:15,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:05:15,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776857581] [2020-10-29 09:05:15,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:05:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:05:15,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:05:15,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:05:15,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:05:15,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 09:05:15,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:05:15,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-29 09:05:15,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:05:15,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:05:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:05:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 09:05:15,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:05:15,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:05:16,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:05:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:05:16,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:05:16,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:05:16,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:05:16,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:05:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 09:05:16,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:05:16,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:05:16,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:05:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:05:16,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:05:16,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:05:16,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 09:05:16,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:05:16,101 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) ... 30 more [2020-10-29 09:05:16,111 INFO L168 Benchmark]: Toolchain (without parser) took 1700.31 ms. Allocated memory is still 157.3 MB. Free memory was 132.4 MB in the beginning and 109.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:05:16,112 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 99.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:05:16,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.43 ms. Allocated memory is still 157.3 MB. Free memory was 131.8 MB in the beginning and 121.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 09:05:16,116 INFO L168 Benchmark]: Boogie Preprocessor took 46.82 ms. Allocated memory is still 157.3 MB. Free memory was 121.5 MB in the beginning and 119.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:05:16,119 INFO L168 Benchmark]: RCFGBuilder took 667.54 ms. Allocated memory is still 157.3 MB. Free memory was 119.8 MB in the beginning and 137.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. [2020-10-29 09:05:16,120 INFO L168 Benchmark]: TraceAbstraction took 656.39 ms. Allocated memory is still 157.3 MB. Free memory was 137.3 MB in the beginning and 109.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-10-29 09:05:16,126 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory is still 99.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 317.43 ms. Allocated memory is still 157.3 MB. Free memory was 131.8 MB in the beginning and 121.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.82 ms. Allocated memory is still 157.3 MB. Free memory was 121.5 MB in the beginning and 119.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 667.54 ms. Allocated memory is still 157.3 MB. Free memory was 119.8 MB in the beginning and 137.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 15.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 656.39 ms. Allocated memory is still 157.3 MB. Free memory was 137.3 MB in the beginning and 109.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:235) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...