/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 04:39:24,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 04:39:24,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 04:39:24,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 04:39:24,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 04:39:24,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 04:39:24,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 04:39:24,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 04:39:24,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 04:39:24,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 04:39:24,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 04:39:24,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 04:39:24,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 04:39:24,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 04:39:24,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 04:39:24,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 04:39:24,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 04:39:24,184 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 04:39:24,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 04:39:24,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 04:39:24,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 04:39:24,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 04:39:24,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 04:39:24,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 04:39:24,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 04:39:24,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 04:39:24,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 04:39:24,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 04:39:24,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 04:39:24,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 04:39:24,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 04:39:24,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 04:39:24,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 04:39:24,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 04:39:24,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 04:39:24,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 04:39:24,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 04:39:24,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 04:39:24,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 04:39:24,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 04:39:24,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 04:39:24,218 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 04:39:24,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 04:39:24,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 04:39:24,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 04:39:24,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 04:39:24,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 04:39:24,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 04:39:24,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 04:39:24,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 04:39:24,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 04:39:24,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 04:39:24,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 04:39:24,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 04:39:24,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 04:39:24,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 04:39:24,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 04:39:24,239 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 04:39:24,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 04:39:24,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 04:39:24,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:24,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 04:39:24,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 04:39:24,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 04:39:24,241 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-07-18 04:39:24,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 04:39:24,548 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 04:39:24,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 04:39:24,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 04:39:24,553 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 04:39:24,553 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1032d.c [2020-07-18 04:39:24,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/601906870/f85c8d04f0c74e24b59356427e140799/FLAG5e251265f [2020-07-18 04:39:25,055 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 04:39:25,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1032d.c [2020-07-18 04:39:25,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/601906870/f85c8d04f0c74e24b59356427e140799/FLAG5e251265f [2020-07-18 04:39:25,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/601906870/f85c8d04f0c74e24b59356427e140799 [2020-07-18 04:39:25,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 04:39:25,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 04:39:25,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:25,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 04:39:25,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 04:39:25,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fe684a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25, skipping insertion in model container [2020-07-18 04:39:25,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 04:39:25,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 04:39:25,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:25,693 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 04:39:25,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:25,747 INFO L208 MainTranslator]: Completed translation [2020-07-18 04:39:25,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25 WrapperNode [2020-07-18 04:39:25,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:25,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 04:39:25,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 04:39:25,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 04:39:25,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (1/1) ... [2020-07-18 04:39:25,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 04:39:25,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 04:39:25,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 04:39:25,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 04:39:25,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (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 04:39:25,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 04:39:25,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 04:39:25,952 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2020-07-18 04:39:25,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-18 04:39:25,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 04:39:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 04:39:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2020-07-18 04:39:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 04:39:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 04:39:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 04:39:25,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 04:39:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 04:39:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 04:39:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-18 04:39:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 04:39:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 04:39:25,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 04:39:26,443 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 04:39:26,444 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-18 04:39:26,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:26 BoogieIcfgContainer [2020-07-18 04:39:26,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 04:39:26,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 04:39:26,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 04:39:26,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 04:39:26,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 04:39:25" (1/3) ... [2020-07-18 04:39:26,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6100e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:26, skipping insertion in model container [2020-07-18 04:39:26,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:25" (2/3) ... [2020-07-18 04:39:26,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6100e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:26, skipping insertion in model container [2020-07-18 04:39:26,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:26" (3/3) ... [2020-07-18 04:39:26,467 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d.c [2020-07-18 04:39:26,480 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 04:39:26,489 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 04:39:26,504 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 04:39:26,529 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 04:39:26,529 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 04:39:26,531 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 04:39:26,531 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 04:39:26,531 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 04:39:26,531 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 04:39:26,531 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 04:39:26,531 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 04:39:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-07-18 04:39:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-18 04:39:26,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:26,571 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] [2020-07-18 04:39:26,572 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:26,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:26,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1159815618, now seen corresponding path program 1 times [2020-07-18 04:39:26,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:26,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070992689] [2020-07-18 04:39:26,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:26,832 INFO L280 TraceCheckUtils]: 0: Hoare triple {107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {83#true} is VALID [2020-07-18 04:39:26,834 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} #valid := #valid[0 := 0]; {83#true} is VALID [2020-07-18 04:39:26,834 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} assume 0 < #StackHeapBarrier; {83#true} is VALID [2020-07-18 04:39:26,835 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-18 04:39:26,835 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {83#true} {83#true} #128#return; {83#true} is VALID [2020-07-18 04:39:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:26,874 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-18 04:39:26,875 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} havoc ~w~0; {83#true} is VALID [2020-07-18 04:39:26,875 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} havoc ~exponent_less_127~0; {83#true} is VALID [2020-07-18 04:39:26,877 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-18 04:39:26,878 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {84#false} is VALID [2020-07-18 04:39:26,878 INFO L280 TraceCheckUtils]: 5: Hoare triple {84#false} assume !(~exponent_less_127~0 < 23); {84#false} is VALID [2020-07-18 04:39:26,878 INFO L280 TraceCheckUtils]: 6: Hoare triple {84#false} assume 128 == ~exponent_less_127~0; {84#false} is VALID [2020-07-18 04:39:26,879 INFO L280 TraceCheckUtils]: 7: Hoare triple {84#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {84#false} is VALID [2020-07-18 04:39:26,879 INFO L280 TraceCheckUtils]: 8: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-18 04:39:26,880 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {84#false} {83#true} #132#return; {84#false} is VALID [2020-07-18 04:39:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:26,915 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-18 04:39:26,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {83#true} havoc ~ix~0; {83#true} is VALID [2020-07-18 04:39:26,920 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-18 04:39:26,920 INFO L280 TraceCheckUtils]: 3: Hoare triple {84#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {84#false} is VALID [2020-07-18 04:39:26,921 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {84#false} is VALID [2020-07-18 04:39:26,921 INFO L280 TraceCheckUtils]: 5: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-18 04:39:26,921 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {84#false} {84#false} #134#return; {84#false} is VALID [2020-07-18 04:39:26,923 INFO L263 TraceCheckUtils]: 0: Hoare triple {83#true} call ULTIMATE.init(); {107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 04:39:26,924 INFO L280 TraceCheckUtils]: 1: Hoare triple {107#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {83#true} is VALID [2020-07-18 04:39:26,924 INFO L280 TraceCheckUtils]: 2: Hoare triple {83#true} #valid := #valid[0 := 0]; {83#true} is VALID [2020-07-18 04:39:26,925 INFO L280 TraceCheckUtils]: 3: Hoare triple {83#true} assume 0 < #StackHeapBarrier; {83#true} is VALID [2020-07-18 04:39:26,925 INFO L280 TraceCheckUtils]: 4: Hoare triple {83#true} assume true; {83#true} is VALID [2020-07-18 04:39:26,925 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {83#true} {83#true} #128#return; {83#true} is VALID [2020-07-18 04:39:26,925 INFO L263 TraceCheckUtils]: 6: Hoare triple {83#true} call #t~ret8 := main(); {83#true} is VALID [2020-07-18 04:39:26,926 INFO L280 TraceCheckUtils]: 7: Hoare triple {83#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0); {83#true} is VALID [2020-07-18 04:39:26,928 INFO L263 TraceCheckUtils]: 8: Hoare triple {83#true} call #t~ret6 := round_float(~x~0); {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:26,928 INFO L280 TraceCheckUtils]: 9: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-18 04:39:26,928 INFO L280 TraceCheckUtils]: 10: Hoare triple {83#true} havoc ~w~0; {83#true} is VALID [2020-07-18 04:39:26,929 INFO L280 TraceCheckUtils]: 11: Hoare triple {83#true} havoc ~exponent_less_127~0; {83#true} is VALID [2020-07-18 04:39:26,930 INFO L280 TraceCheckUtils]: 12: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-18 04:39:26,930 INFO L280 TraceCheckUtils]: 13: Hoare triple {84#false} ~exponent_less_127~0 := (if ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {84#false} is VALID [2020-07-18 04:39:26,931 INFO L280 TraceCheckUtils]: 14: Hoare triple {84#false} assume !(~exponent_less_127~0 < 23); {84#false} is VALID [2020-07-18 04:39:26,931 INFO L280 TraceCheckUtils]: 15: Hoare triple {84#false} assume 128 == ~exponent_less_127~0; {84#false} is VALID [2020-07-18 04:39:26,931 INFO L280 TraceCheckUtils]: 16: Hoare triple {84#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {84#false} is VALID [2020-07-18 04:39:26,932 INFO L280 TraceCheckUtils]: 17: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-18 04:39:26,932 INFO L275 TraceCheckUtils]: 18: Hoare quadruple {84#false} {83#true} #132#return; {84#false} is VALID [2020-07-18 04:39:26,932 INFO L280 TraceCheckUtils]: 19: Hoare triple {84#false} ~res~0 := #t~ret6; {84#false} is VALID [2020-07-18 04:39:26,933 INFO L280 TraceCheckUtils]: 20: Hoare triple {84#false} havoc #t~ret6; {84#false} is VALID [2020-07-18 04:39:26,933 INFO L263 TraceCheckUtils]: 21: Hoare triple {84#false} call #t~ret7 := isinf_float(~res~0); {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:26,933 INFO L280 TraceCheckUtils]: 22: Hoare triple {108#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {83#true} is VALID [2020-07-18 04:39:26,934 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#true} havoc ~ix~0; {83#true} is VALID [2020-07-18 04:39:26,935 INFO L280 TraceCheckUtils]: 24: Hoare triple {83#true} assume !true; {84#false} is VALID [2020-07-18 04:39:26,935 INFO L280 TraceCheckUtils]: 25: Hoare triple {84#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {84#false} is VALID [2020-07-18 04:39:26,935 INFO L280 TraceCheckUtils]: 26: Hoare triple {84#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {84#false} is VALID [2020-07-18 04:39:26,936 INFO L280 TraceCheckUtils]: 27: Hoare triple {84#false} assume true; {84#false} is VALID [2020-07-18 04:39:26,936 INFO L275 TraceCheckUtils]: 28: Hoare quadruple {84#false} {84#false} #134#return; {84#false} is VALID [2020-07-18 04:39:26,936 INFO L280 TraceCheckUtils]: 29: Hoare triple {84#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {84#false} is VALID [2020-07-18 04:39:26,937 INFO L280 TraceCheckUtils]: 30: Hoare triple {84#false} assume 0 == #t~ret7; {84#false} is VALID [2020-07-18 04:39:26,937 INFO L280 TraceCheckUtils]: 31: Hoare triple {84#false} havoc #t~ret7; {84#false} is VALID [2020-07-18 04:39:26,937 INFO L280 TraceCheckUtils]: 32: Hoare triple {84#false} assume !false; {84#false} is VALID [2020-07-18 04:39:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 04:39:26,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070992689] [2020-07-18 04:39:26,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 04:39:26,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 04:39:26,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661561589] [2020-07-18 04:39:26,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-07-18 04:39:26,955 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 04:39:26,959 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 04:39:27,013 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:27,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 04:39:27,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 04:39:27,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 04:39:27,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 04:39:27,023 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 4 states. [2020-07-18 04:39:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:27,658 INFO L93 Difference]: Finished difference Result 147 states and 170 transitions. [2020-07-18 04:39:27,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 04:39:27,659 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-07-18 04:39:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 04:39:27,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2020-07-18 04:39:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2020-07-18 04:39:27,683 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 170 transitions. [2020-07-18 04:39:27,869 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 170 edges. 170 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:27,897 INFO L225 Difference]: With dead ends: 147 [2020-07-18 04:39:27,897 INFO L226 Difference]: Without dead ends: 73 [2020-07-18 04:39:27,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 04:39:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-18 04:39:28,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-07-18 04:39:28,026 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 04:39:28,027 INFO L82 GeneralOperation]: Start isEquivalent. First operand 73 states. Second operand 73 states. [2020-07-18 04:39:28,027 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-18 04:39:28,028 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-18 04:39:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:28,035 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-07-18 04:39:28,035 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-18 04:39:28,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:28,037 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:28,037 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 73 states. [2020-07-18 04:39:28,037 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 73 states. [2020-07-18 04:39:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:28,044 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2020-07-18 04:39:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-18 04:39:28,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:28,046 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:28,046 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 04:39:28,046 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 04:39:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-18 04:39:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2020-07-18 04:39:28,053 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 33 [2020-07-18 04:39:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 04:39:28,053 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2020-07-18 04:39:28,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 04:39:28,054 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 77 transitions. [2020-07-18 04:39:28,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2020-07-18 04:39:28,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-18 04:39:28,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:28,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 04:39:28,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 04:39:28,156 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:28,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:28,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1327205882, now seen corresponding path program 1 times [2020-07-18 04:39:28,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:28,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717520163] [2020-07-18 04:39:28,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:28,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 04:39:28,319 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) 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 04:39:28,334 INFO L168 Benchmark]: Toolchain (without parser) took 2864.80 ms. Allocated memory was 138.4 MB in the beginning and 235.9 MB in the end (delta: 97.5 MB). Free memory was 103.9 MB in the beginning and 82.8 MB in the end (delta: 21.1 MB). Peak memory consumption was 118.6 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,335 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.99 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 91.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,338 INFO L168 Benchmark]: Boogie Preprocessor took 139.62 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.9 MB in the beginning and 179.8 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,339 INFO L168 Benchmark]: RCFGBuilder took 563.21 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 145.4 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,340 INFO L168 Benchmark]: TraceAbstraction took 1868.18 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 144.7 MB in the beginning and 82.8 MB in the end (delta: 62.0 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:28,346 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 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.99 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 91.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.62 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 91.9 MB in the beginning and 179.8 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 563.21 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 145.4 MB in the end (delta: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1868.18 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 144.7 MB in the beginning and 82.8 MB in the end (delta: 62.0 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...