/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/reducercommutativity/rangesum05.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:47:07,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:47:07,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:47:07,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:47:07,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:47:07,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:47:07,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:47:07,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:47:07,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:47:07,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:47:07,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:47:07,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:47:07,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:47:07,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:47:07,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:47:07,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:47:07,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:47:07,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:47:07,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:47:07,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:47:07,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:47:07,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:47:07,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:47:07,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:47:07,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:47:07,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:47:07,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:47:07,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:47:07,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:47:07,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:47:07,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:47:07,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:47:07,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:47:07,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:47:07,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:47:07,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:47:07,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:47:07,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:47:07,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:47:07,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:47:07,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:47:07,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:47:07,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:47:07,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:47:07,437 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:47:07,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:47:07,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:47:07,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:47:07,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:47:07,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:47:07,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:47:07,439 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:47:07,726 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:47:07,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:47:07,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:47:07,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:47:07,754 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:47:07,755 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/rangesum05.i [2020-07-18 00:47:07,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ef73ee7/5171ab925a964876bfc5f6e659d20aae/FLAG42322e1ae [2020-07-18 00:47:08,287 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:47:08,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/rangesum05.i [2020-07-18 00:47:08,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ef73ee7/5171ab925a964876bfc5f6e659d20aae/FLAG42322e1ae [2020-07-18 00:47:08,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7ef73ee7/5171ab925a964876bfc5f6e659d20aae [2020-07-18 00:47:08,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:47:08,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:47:08,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:08,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:47:08,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:47:08,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:08" (1/1) ... [2020-07-18 00:47:08,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d888753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:08, skipping insertion in model container [2020-07-18 00:47:08,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:47:08" (1/1) ... [2020-07-18 00:47:08,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:47:08,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:47:08,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:08,967 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:47:08,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:47:09,008 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:47:09,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09 WrapperNode [2020-07-18 00:47:09,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:47:09,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:47:09,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:47:09,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:47:09,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (1/1) ... [2020-07-18 00:47:09,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:47:09,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:47:09,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:47:09,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:47:09,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (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 [2020-07-18 00:47:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:47:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:47:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2020-07-18 00:47:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2020-07-18 00:47:09,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:47:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:47:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:47:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2020-07-18 00:47:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:47:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2020-07-18 00:47:09,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:47:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:47:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:47:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:47:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:47:09,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:47:09,742 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:47:09,742 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-07-18 00:47:09,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:09 BoogieIcfgContainer [2020-07-18 00:47:09,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:47:09,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:47:09,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:47:09,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:47:09,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:47:08" (1/3) ... [2020-07-18 00:47:09,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f26aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:09, skipping insertion in model container [2020-07-18 00:47:09,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:47:09" (2/3) ... [2020-07-18 00:47:09,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f26aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:47:09, skipping insertion in model container [2020-07-18 00:47:09,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:47:09" (3/3) ... [2020-07-18 00:47:09,757 INFO L109 eAbstractionObserver]: Analyzing ICFG rangesum05.i [2020-07-18 00:47:09,768 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:47:09,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:47:09,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:47:09,816 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:47:09,817 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:47:09,817 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:47:09,817 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:47:09,818 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:47:09,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:47:09,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:47:09,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:47:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-07-18 00:47:09,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-18 00:47:09,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:47:09,854 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:47:09,855 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:47:09,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:47:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1280957069, now seen corresponding path program 1 times [2020-07-18 00:47:09,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:47:09,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606030237] [2020-07-18 00:47:09,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:47:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:10,119 INFO L280 TraceCheckUtils]: 0: Hoare triple {135#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {89#true} is VALID [2020-07-18 00:47:10,119 INFO L280 TraceCheckUtils]: 1: Hoare triple {89#true} #valid := #valid[0 := 0]; {89#true} is VALID [2020-07-18 00:47:10,120 INFO L280 TraceCheckUtils]: 2: Hoare triple {89#true} assume 0 < #StackHeapBarrier; {89#true} is VALID [2020-07-18 00:47:10,120 INFO L280 TraceCheckUtils]: 3: Hoare triple {89#true} assume true; {89#true} is VALID [2020-07-18 00:47:10,121 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {89#true} {89#true} #127#return; {89#true} is VALID [2020-07-18 00:47:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:47:10,172 INFO L280 TraceCheckUtils]: 0: Hoare triple {136#(= |#memory_int| |old(#memory_int)|)} ~x.base, ~x.offset := #in~x.base, #in~x.offset; {89#true} is VALID [2020-07-18 00:47:10,173 INFO L280 TraceCheckUtils]: 1: Hoare triple {89#true} havoc ~i~0; {89#true} is VALID [2020-07-18 00:47:10,174 INFO L280 TraceCheckUtils]: 2: Hoare triple {89#true} ~i~0 := 0; {137#(<= init_nondet_~i~0 0)} is VALID [2020-07-18 00:47:10,175 INFO L280 TraceCheckUtils]: 3: Hoare triple {137#(<= init_nondet_~i~0 0)} assume !(~i~0 < 5); {90#false} is VALID [2020-07-18 00:47:10,176 INFO L280 TraceCheckUtils]: 4: Hoare triple {90#false} assume true; {90#false} is VALID [2020-07-18 00:47:10,176 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {90#false} {89#true} #131#return; {90#false} is VALID [2020-07-18 00:47:10,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:47:10,193 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.UnknownState.getVars(UnknownState.java:76) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:108) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.constructInductive(AcceleratedInterpolation.java:373) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:296) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) 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:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:47:10,199 INFO L168 Benchmark]: Toolchain (without parser) took 1512.84 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 102.4 MB in the beginning and 119.2 MB in the end (delta: -16.8 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:10,200 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:47:10,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.00 ms. Allocated memory is still 144.7 MB. Free memory was 102.0 MB in the beginning and 91.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:10,203 INFO L168 Benchmark]: Boogie Preprocessor took 148.29 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.1 MB in the beginning and 179.3 MB in the end (delta: -88.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:10,203 INFO L168 Benchmark]: RCFGBuilder took 589.71 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 144.1 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:10,204 INFO L168 Benchmark]: TraceAbstraction took 446.97 ms. Allocated memory is still 201.9 MB. Free memory was 143.4 MB in the beginning and 119.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:47:10,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 144.7 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.00 ms. Allocated memory is still 144.7 MB. Free memory was 102.0 MB in the beginning and 91.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.29 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 91.1 MB in the beginning and 179.3 MB in the end (delta: -88.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 589.71 ms. Allocated memory is still 201.9 MB. Free memory was 179.3 MB in the beginning and 144.1 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 446.97 ms. Allocated memory is still 201.9 MB. Free memory was 143.4 MB in the beginning and 119.2 MB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.UnknownState.getVars(UnknownState.java:76) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...