/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/cos_polynomial.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:02:25,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:02:25,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:02:25,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:02:25,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:02:25,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:02:25,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:02:25,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:02:25,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:02:25,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:02:25,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:02:25,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:02:25,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:02:25,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:02:25,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:02:25,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:02:25,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:02:25,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:02:25,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:02:25,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:02:25,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:02:25,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:02:25,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:02:25,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:02:25,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:02:25,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:02:25,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:02:25,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:02:25,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:02:25,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:02:25,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:02:25,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:02:25,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:02:25,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:02:25,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:02:25,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:02:25,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:02:25,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:02:25,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:02:25,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:02:25,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:02:25,531 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 09:02:25,589 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:02:25,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:02:25,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:02:25,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:02:25,596 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:02:25,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:02:25,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:02:25,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:02:25,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:02:25,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:02:25,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:02:25,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:02:25,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:02:25,599 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:02:25,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:02:25,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:02:25,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:02:25,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:02:25,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:02:25,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:02:25,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:02:25,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:02:25,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:02:25,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:02:25,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:02:25,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:02:25,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:02:25,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:02:25,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:02:25,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:02:26,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:02:26,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:02:26,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:02:26,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:02:26,095 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:02:26,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cos_polynomial.c [2020-10-29 09:02:26,205 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c80becf3a/976a03830a084ea99a2089a0e9b9a0fa/FLAGde8d12aed [2020-10-29 09:02:26,905 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:02:26,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/cos_polynomial.c [2020-10-29 09:02:26,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c80becf3a/976a03830a084ea99a2089a0e9b9a0fa/FLAGde8d12aed [2020-10-29 09:02:27,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c80becf3a/976a03830a084ea99a2089a0e9b9a0fa [2020-10-29 09:02:27,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:02:27,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:02:27,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:02:27,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:02:27,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:02:27,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7c8e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27, skipping insertion in model container [2020-10-29 09:02:27,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:02:27,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:02:27,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:02:27,542 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:02:27,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:02:27,588 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:02:27,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27 WrapperNode [2020-10-29 09:02:27,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:02:27,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:02:27,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:02:27,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:02:27,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (1/1) ... [2020-10-29 09:02:27,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:02:27,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:02:27,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:02:27,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:02:27,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (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 09:02:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:02:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:02:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:02:27,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 09:02:27,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 09:02:27,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mcos [2020-10-29 09:02:27,733 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:02:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:02:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:02:27,734 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:02:27,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:02:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:02:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 09:02:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 09:02:27,736 INFO L130 BoogieDeclarations]: Found specification of procedure mcos [2020-10-29 09:02:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:02:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:02:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:02:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:02:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:02:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:02:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:02:28,030 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:02:28,030 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-29 09:02:28,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:02:28 BoogieIcfgContainer [2020-10-29 09:02:28,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:02:28,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:02:28,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:02:28,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:02:28,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:02:27" (1/3) ... [2020-10-29 09:02:28,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12896b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:02:28, skipping insertion in model container [2020-10-29 09:02:28,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:02:27" (2/3) ... [2020-10-29 09:02:28,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12896b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:02:28, skipping insertion in model container [2020-10-29 09:02:28,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:02:28" (3/3) ... [2020-10-29 09:02:28,078 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2020-10-29 09:02:28,096 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:02:28,102 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:02:28,123 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:02:28,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:02:28,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:02:28,181 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:02:28,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:02:28,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:02:28,184 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:02:28,184 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:02:28,184 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:02:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-10-29 09:02:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 09:02:28,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:02:28,233 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] [2020-10-29 09:02:28,233 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:02:28,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:02:28,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1977603380, now seen corresponding path program 1 times [2020-10-29 09:02:28,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:02:28,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508411049] [2020-10-29 09:02:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:02:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:02:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:02:28,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:02:28,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 09:02:28,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:02:28,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-29 09:02:28,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:02:28,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:02:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:02:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 09:02:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:02:28,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:02:28,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:02:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:02:28,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:02:28,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:02:28,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:02:28,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:02:28,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 09:02:28,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:02:28,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:02:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:02:28,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:02:28,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:02:28,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:02:28,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 09:02:28,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:02:28,876 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 09:02:28,882 INFO L168 Benchmark]: Toolchain (without parser) took 1610.50 ms. Allocated memory is still 153.1 MB. Free memory was 128.2 MB in the beginning and 107.0 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:02:28,883 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 153.1 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:02:28,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.14 ms. Allocated memory is still 153.1 MB. Free memory was 127.6 MB in the beginning and 117.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 09:02:28,888 INFO L168 Benchmark]: Boogie Preprocessor took 40.62 ms. Allocated memory is still 153.1 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:02:28,889 INFO L168 Benchmark]: RCFGBuilder took 400.96 ms. Allocated memory is still 153.1 MB. Free memory was 115.9 MB in the beginning and 101.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:02:28,890 INFO L168 Benchmark]: TraceAbstraction took 844.23 ms. Allocated memory is still 153.1 MB. Free memory was 100.8 MB in the beginning and 107.0 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:02:28,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 153.1 MB. Free memory is still 127.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 312.14 ms. Allocated memory is still 153.1 MB. Free memory was 127.6 MB in the beginning and 117.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.62 ms. Allocated memory is still 153.1 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.96 ms. Allocated memory is still 153.1 MB. Free memory was 115.9 MB in the beginning and 101.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 844.23 ms. Allocated memory is still 153.1 MB. Free memory was 100.8 MB in the beginning and 107.0 MB in the end (delta: -6.2 MB). There was no memory consumed. 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...