/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:25:39,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:25:39,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:25:39,117 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:25:39,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:25:39,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:25:39,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:25:39,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:25:39,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:25:39,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:25:39,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:25:39,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:25:39,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:25:39,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:25:39,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:25:39,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:25:39,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:25:39,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:25:39,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:25:39,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:25:39,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:25:39,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:25:39,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:25:39,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:25:39,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:25:39,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:25:39,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:25:39,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:25:39,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:25:39,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:25:39,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:25:39,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:25:39,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:25:39,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:25:39,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:25:39,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:25:39,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:25:39,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:25:39,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:25:39,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:25:39,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:25:39,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:25:39,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:25:39,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:25:39,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:25:39,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:25:39,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:25:39,246 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:25:39,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:25:39,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:25:39,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:25:39,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:25:39,248 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:25:39,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:25:39,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:25:39,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:25:39,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:25:39,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:25:39,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:25:39,249 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:25:39,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:25:39,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:25:39,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:25:39,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:25:39,731 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:25:39,732 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-floats-scientific-comp/loop2-1.c [2020-10-23 20:25:39,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd49f1423/f409a0c875704b8a86c61813ab141bcc/FLAGcf16fcf20 [2020-10-23 20:25:40,456 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:25:40,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-floats-scientific-comp/loop2-1.c [2020-10-23 20:25:40,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd49f1423/f409a0c875704b8a86c61813ab141bcc/FLAGcf16fcf20 [2020-10-23 20:25:40,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd49f1423/f409a0c875704b8a86c61813ab141bcc [2020-10-23 20:25:40,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:25:40,802 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:25:40,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:40,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:25:40,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:25:40,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:40" (1/1) ... [2020-10-23 20:25:40,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c73d52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:40, skipping insertion in model container [2020-10-23 20:25:40,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:25:40" (1/1) ... [2020-10-23 20:25:40,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:25:40,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:25:41,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:41,087 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:25:41,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:25:41,126 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:25:41,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41 WrapperNode [2020-10-23 20:25:41,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:25:41,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:25:41,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:25:41,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:25:41,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... [2020-10-23 20:25:41,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:25:41,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:25:41,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:25:41,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:25:41,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-23 20:25:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:25:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:25:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:25:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 20:25:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 20:25:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:25:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:25:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:25:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:25:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:25:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 20:25:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 20:25:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-23 20:25:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:25:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:25:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:25:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:25:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:25:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:25:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:25:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:25:41,584 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:25:41,584 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 20:25:41,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:41 BoogieIcfgContainer [2020-10-23 20:25:41,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:25:41,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:25:41,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:25:41,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:25:41,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:25:40" (1/3) ... [2020-10-23 20:25:41,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db2fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:41, skipping insertion in model container [2020-10-23 20:25:41,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:25:41" (2/3) ... [2020-10-23 20:25:41,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db2fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:25:41, skipping insertion in model container [2020-10-23 20:25:41,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:25:41" (3/3) ... [2020-10-23 20:25:41,599 INFO L111 eAbstractionObserver]: Analyzing ICFG loop2-1.c [2020-10-23 20:25:41,614 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:25:41,620 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:25:41,638 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:25:41,671 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:25:41,672 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:25:41,672 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:25:41,672 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:25:41,672 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:25:41,672 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:25:41,673 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:25:41,673 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:25:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2020-10-23 20:25:41,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-23 20:25:41,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:25:41,729 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] [2020-10-23 20:25:41,731 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:25:41,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:25:41,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1710889561, now seen corresponding path program 1 times [2020-10-23 20:25:41,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:25:41,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798204364] [2020-10-23 20:25:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:25:41,895 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:25:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:42,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:25:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:25:42,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 20:25:42,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:25:42,278 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.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:154) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:322) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) 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.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) ... 34 more [2020-10-23 20:25:42,284 INFO L168 Benchmark]: Toolchain (without parser) took 1485.19 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 132.1 MB in the end (delta: -183.4 kB). Peak memory consumption was 1.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:42,285 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:42,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.50 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 120.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:42,287 INFO L168 Benchmark]: Boogie Preprocessor took 41.28 ms. Allocated memory is still 156.2 MB. Free memory was 120.9 MB in the beginning and 119.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:42,288 INFO L168 Benchmark]: RCFGBuilder took 415.80 ms. Allocated memory is still 156.2 MB. Free memory was 119.1 MB in the beginning and 102.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2020-10-23 20:25:42,289 INFO L168 Benchmark]: TraceAbstraction took 692.03 ms. Allocated memory is still 156.2 MB. Free memory was 102.0 MB in the beginning and 132.1 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:25:42,294 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 156.2 MB. Free memory is still 131.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 323.50 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 120.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.28 ms. Allocated memory is still 156.2 MB. Free memory was 120.9 MB in the beginning and 119.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 415.80 ms. Allocated memory is still 156.2 MB. Free memory was 119.1 MB in the beginning and 102.3 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 692.03 ms. Allocated memory is still 156.2 MB. Free memory was 102.0 MB in the beginning and 132.1 MB in the end (delta: -30.1 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...