/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_1052a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 00:33:10,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 00:33:10,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 00:33:10,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 00:33:10,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 00:33:10,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 00:33:10,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 00:33:10,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 00:33:10,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 00:33:10,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 00:33:10,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 00:33:10,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 00:33:10,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 00:33:10,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 00:33:10,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 00:33:10,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 00:33:10,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 00:33:10,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 00:33:10,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 00:33:10,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 00:33:10,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 00:33:10,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 00:33:10,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 00:33:10,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 00:33:10,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-11 00:33:10,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 00:33:10,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 00:33:10,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 00:33:10,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 00:33:10,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 00:33:10,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 00:33:10,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 00:33:10,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 00:33:10,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 00:33:10,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 00:33:10,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 00:33:10,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 00:33:10,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 00:33:10,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 00:33:10,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 00:33:10,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 00:33:10,876 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 00:33:10,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 00:33:10,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 00:33:10,878 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 00:33:10,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 00:33:10,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 00:33:10,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 00:33:10,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 00:33:10,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 00:33:10,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 00:33:10,879 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 [2020-07-11 00:33:11,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 00:33:11,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 00:33:11,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 00:33:11,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 00:33:11,174 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 00:33:11,175 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052a.c [2020-07-11 00:33:11,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e21ac503/86b2d851e2934039a135026cc64859bf/FLAG05127e3f7 [2020-07-11 00:33:11,747 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 00:33:11,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052a.c [2020-07-11 00:33:11,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e21ac503/86b2d851e2934039a135026cc64859bf/FLAG05127e3f7 [2020-07-11 00:33:12,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e21ac503/86b2d851e2934039a135026cc64859bf [2020-07-11 00:33:12,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 00:33:12,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 00:33:12,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 00:33:12,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 00:33:12,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 00:33:12,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5c151b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12, skipping insertion in model container [2020-07-11 00:33:12,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 00:33:12,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 00:33:12,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:33:12,370 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 00:33:12,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 00:33:12,514 INFO L208 MainTranslator]: Completed translation [2020-07-11 00:33:12,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12 WrapperNode [2020-07-11 00:33:12,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 00:33:12,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 00:33:12,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 00:33:12,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 00:33:12,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (1/1) ... [2020-07-11 00:33:12,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 00:33:12,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 00:33:12,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 00:33:12,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 00:33:12,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (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 [2020-07-11 00:33:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 00:33:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 00:33:12,654 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-07-11 00:33:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-11 00:33:12,655 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 00:33:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 00:33:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-07-11 00:33:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-11 00:33:12,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-11 00:33:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-11 00:33:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-11 00:33:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-11 00:33:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-11 00:33:12,656 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-11 00:33:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 00:33:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 00:33:12,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 00:33:13,207 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 00:33:13,207 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-11 00:33:13,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:33:13 BoogieIcfgContainer [2020-07-11 00:33:13,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 00:33:13,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 00:33:13,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 00:33:13,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 00:33:13,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 12:33:12" (1/3) ... [2020-07-11 00:33:13,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d161898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:33:13, skipping insertion in model container [2020-07-11 00:33:13,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 12:33:12" (2/3) ... [2020-07-11 00:33:13,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d161898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 12:33:13, skipping insertion in model container [2020-07-11 00:33:13,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 12:33:13" (3/3) ... [2020-07-11 00:33:13,222 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2020-07-11 00:33:13,233 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 00:33:13,242 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 00:33:13,257 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 00:33:13,281 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 00:33:13,281 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 00:33:13,281 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 00:33:13,282 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 00:33:13,282 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 00:33:13,282 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 00:33:13,282 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 00:33:13,283 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 00:33:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-07-11 00:33:13,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-11 00:33:13,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 00:33:13,318 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] [2020-07-11 00:33:13,318 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 00:33:13,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 00:33:13,325 INFO L82 PathProgramCache]: Analyzing trace with hash 270857975, now seen corresponding path program 1 times [2020-07-11 00:33:13,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 00:33:13,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837339322] [2020-07-11 00:33:13,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 00:33:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 00:33:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 00:33:13,587 INFO L280 TraceCheckUtils]: 0: Hoare triple {119#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {91#true} is VALID [2020-07-11 00:33:13,587 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} #valid := #valid[0 := 0]; {91#true} is VALID [2020-07-11 00:33:13,588 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} assume 0 < #StackHeapBarrier; {91#true} is VALID [2020-07-11 00:33:13,589 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} ~huge_floor~0 := 1.0E30; {91#true} is VALID [2020-07-11 00:33:13,590 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} assume true; {91#true} is VALID [2020-07-11 00:33:13,590 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {91#true} {91#true} #154#return; {91#true} is VALID [2020-07-11 00:33:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 00:33:13,630 INFO L280 TraceCheckUtils]: 0: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-11 00:33:13,630 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} havoc ~i0~0; {91#true} is VALID [2020-07-11 00:33:13,631 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} havoc ~j0~0; {91#true} is VALID [2020-07-11 00:33:13,631 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} havoc ~i~0; {91#true} is VALID [2020-07-11 00:33:13,631 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} havoc ~ix~0; {91#true} is VALID [2020-07-11 00:33:13,633 INFO L280 TraceCheckUtils]: 5: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-11 00:33:13,633 INFO L280 TraceCheckUtils]: 6: Hoare triple {92#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {92#false} is VALID [2020-07-11 00:33:13,633 INFO L280 TraceCheckUtils]: 7: Hoare triple {92#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {92#false} is VALID [2020-07-11 00:33:13,634 INFO L280 TraceCheckUtils]: 8: Hoare triple {92#false} assume !(~j0~0 < 23); {92#false} is VALID [2020-07-11 00:33:13,634 INFO L280 TraceCheckUtils]: 9: Hoare triple {92#false} assume !(~ix~0 % 4294967296 < 2139095040); {92#false} is VALID [2020-07-11 00:33:13,635 INFO L280 TraceCheckUtils]: 10: Hoare triple {92#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {92#false} is VALID [2020-07-11 00:33:13,635 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-11 00:33:13,635 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {92#false} {91#true} #158#return; {92#false} is VALID [2020-07-11 00:33:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 00:33:13,646 INFO L280 TraceCheckUtils]: 0: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-11 00:33:13,646 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} havoc ~ix~1; {91#true} is VALID [2020-07-11 00:33:13,647 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-11 00:33:13,647 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {92#false} is VALID [2020-07-11 00:33:13,648 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {92#false} is VALID [2020-07-11 00:33:13,648 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-11 00:33:13,649 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {92#false} {92#false} #160#return; {92#false} is VALID [2020-07-11 00:33:13,651 INFO L263 TraceCheckUtils]: 0: Hoare triple {91#true} call ULTIMATE.init(); {119#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 00:33:13,651 INFO L280 TraceCheckUtils]: 1: Hoare triple {119#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~huge_floor~0 |old(~huge_floor~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {91#true} is VALID [2020-07-11 00:33:13,652 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} #valid := #valid[0 := 0]; {91#true} is VALID [2020-07-11 00:33:13,652 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} assume 0 < #StackHeapBarrier; {91#true} is VALID [2020-07-11 00:33:13,652 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} ~huge_floor~0 := 1.0E30; {91#true} is VALID [2020-07-11 00:33:13,653 INFO L280 TraceCheckUtils]: 5: Hoare triple {91#true} assume true; {91#true} is VALID [2020-07-11 00:33:13,653 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {91#true} {91#true} #154#return; {91#true} is VALID [2020-07-11 00:33:13,653 INFO L263 TraceCheckUtils]: 7: Hoare triple {91#true} call #t~ret8 := main(); {91#true} is VALID [2020-07-11 00:33:13,654 INFO L280 TraceCheckUtils]: 8: Hoare triple {91#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); {91#true} is VALID [2020-07-11 00:33:13,656 INFO L263 TraceCheckUtils]: 9: Hoare triple {91#true} call #t~ret6 := floor_float(~x~0); {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-11 00:33:13,656 INFO L280 TraceCheckUtils]: 10: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-11 00:33:13,657 INFO L280 TraceCheckUtils]: 11: Hoare triple {91#true} havoc ~i0~0; {91#true} is VALID [2020-07-11 00:33:13,657 INFO L280 TraceCheckUtils]: 12: Hoare triple {91#true} havoc ~j0~0; {91#true} is VALID [2020-07-11 00:33:13,657 INFO L280 TraceCheckUtils]: 13: Hoare triple {91#true} havoc ~i~0; {91#true} is VALID [2020-07-11 00:33:13,658 INFO L280 TraceCheckUtils]: 14: Hoare triple {91#true} havoc ~ix~0; {91#true} is VALID [2020-07-11 00:33:13,659 INFO L280 TraceCheckUtils]: 15: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-11 00:33:13,659 INFO L280 TraceCheckUtils]: 16: Hoare triple {92#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {92#false} is VALID [2020-07-11 00:33:13,659 INFO L280 TraceCheckUtils]: 17: Hoare triple {92#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {92#false} is VALID [2020-07-11 00:33:13,660 INFO L280 TraceCheckUtils]: 18: Hoare triple {92#false} assume !(~j0~0 < 23); {92#false} is VALID [2020-07-11 00:33:13,660 INFO L280 TraceCheckUtils]: 19: Hoare triple {92#false} assume !(~ix~0 % 4294967296 < 2139095040); {92#false} is VALID [2020-07-11 00:33:13,660 INFO L280 TraceCheckUtils]: 20: Hoare triple {92#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {92#false} is VALID [2020-07-11 00:33:13,661 INFO L280 TraceCheckUtils]: 21: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-11 00:33:13,661 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {92#false} {91#true} #158#return; {92#false} is VALID [2020-07-11 00:33:13,661 INFO L280 TraceCheckUtils]: 23: Hoare triple {92#false} ~res~0 := #t~ret6; {92#false} is VALID [2020-07-11 00:33:13,662 INFO L280 TraceCheckUtils]: 24: Hoare triple {92#false} havoc #t~ret6; {92#false} is VALID [2020-07-11 00:33:13,662 INFO L263 TraceCheckUtils]: 25: Hoare triple {92#false} call #t~ret7 := isinf_float(~res~0); {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-11 00:33:13,662 INFO L280 TraceCheckUtils]: 26: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-11 00:33:13,663 INFO L280 TraceCheckUtils]: 27: Hoare triple {91#true} havoc ~ix~1; {91#true} is VALID [2020-07-11 00:33:13,664 INFO L280 TraceCheckUtils]: 28: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-11 00:33:13,664 INFO L280 TraceCheckUtils]: 29: Hoare triple {92#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {92#false} is VALID [2020-07-11 00:33:13,664 INFO L280 TraceCheckUtils]: 30: Hoare triple {92#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {92#false} is VALID [2020-07-11 00:33:13,665 INFO L280 TraceCheckUtils]: 31: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-11 00:33:13,665 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {92#false} {92#false} #160#return; {92#false} is VALID [2020-07-11 00:33:13,665 INFO L280 TraceCheckUtils]: 33: Hoare triple {92#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {92#false} is VALID [2020-07-11 00:33:13,666 INFO L280 TraceCheckUtils]: 34: Hoare triple {92#false} assume 0 == #t~ret7; {92#false} is VALID [2020-07-11 00:33:13,666 INFO L280 TraceCheckUtils]: 35: Hoare triple {92#false} havoc #t~ret7; {92#false} is VALID [2020-07-11 00:33:13,666 INFO L280 TraceCheckUtils]: 36: Hoare triple {92#false} assume !false; {92#false} is VALID [2020-07-11 00:33:13,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 00:33:13,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837339322] [2020-07-11 00:33:13,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 00:33:13,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-11 00:33:13,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607108784] [2020-07-11 00:33:13,684 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-11 00:33:13,687 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 00:33:13,691 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-11 00:33:13,770 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 00:33:13,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-11 00:33:13,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 00:33:13,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-11 00:33:13,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-11 00:33:13,784 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-07-11 00:33:14,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 00:33:14,465 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2020-07-11 00:33:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-11 00:33:14,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-11 00:33:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 00:33:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-11 00:33:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2020-07-11 00:33:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-11 00:33:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2020-07-11 00:33:14,491 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 191 transitions. [2020-07-11 00:33:14,753 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 191 edges. 191 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 00:33:14,777 INFO L225 Difference]: With dead ends: 160 [2020-07-11 00:33:14,777 INFO L226 Difference]: Without dead ends: 81 [2020-07-11 00:33:14,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-11 00:33:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-11 00:33:14,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-11 00:33:14,926 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 00:33:14,927 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2020-07-11 00:33:14,928 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-11 00:33:14,928 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-11 00:33:14,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 00:33:14,935 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-11 00:33:14,936 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-11 00:33:14,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 00:33:14,937 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 00:33:14,937 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-11 00:33:14,937 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-11 00:33:14,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 00:33:14,944 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-11 00:33:14,945 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-11 00:33:14,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 00:33:14,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 00:33:14,946 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 00:33:14,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 00:33:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-11 00:33:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-07-11 00:33:14,953 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 37 [2020-07-11 00:33:14,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 00:33:14,954 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-07-11 00:33:14,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-11 00:33:14,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 89 transitions. [2020-07-11 00:33:15,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 00:33:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-11 00:33:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-11 00:33:15,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 00:33:15,060 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, 1, 1, 1, 1] [2020-07-11 00:33:15,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 00:33:15,061 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 00:33:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 00:33:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash 822923104, now seen corresponding path program 1 times [2020-07-11 00:33:15,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 00:33:15,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1826295148] [2020-07-11 00:33:15,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 00:33:15,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 00:33:15,189 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:1012) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1159) 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.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) [2020-07-11 00:33:15,198 INFO L168 Benchmark]: Toolchain (without parser) took 3076.78 ms. Allocated memory was 145.2 MB in the beginning and 244.8 MB in the end (delta: 99.6 MB). Free memory was 102.8 MB in the beginning and 187.0 MB in the end (delta: -84.2 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2020-07-11 00:33:15,199 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-11 00:33:15,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.19 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.6 MB in the beginning and 181.9 MB in the end (delta: -79.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-07-11 00:33:15,201 INFO L168 Benchmark]: Boogie Preprocessor took 77.63 ms. Allocated memory is still 202.9 MB. Free memory was 181.9 MB in the beginning and 179.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-07-11 00:33:15,202 INFO L168 Benchmark]: RCFGBuilder took 619.07 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 141.0 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2020-07-11 00:33:15,203 INFO L168 Benchmark]: TraceAbstraction took 1981.11 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 141.0 MB in the beginning and 187.0 MB in the end (delta: -46.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-11 00:33:15,207 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 145.2 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 393.19 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 102.6 MB in the beginning and 181.9 MB in the end (delta: -79.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 77.63 ms. Allocated memory is still 202.9 MB. Free memory was 181.9 MB in the beginning and 179.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 619.07 ms. Allocated memory is still 202.9 MB. Free memory was 179.0 MB in the beginning and 141.0 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1981.11 ms. Allocated memory was 202.9 MB in the beginning and 244.8 MB in the end (delta: 41.9 MB). Free memory was 141.0 MB in the beginning and 187.0 MB in the end (delta: -46.0 MB). There was no memory consumed. 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...