/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:35:29,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:35:29,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:35:29,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:35:29,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:35:29,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:35:29,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:35:29,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:35:29,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:35:29,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:35:29,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:35:29,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:35:29,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:35:29,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:35:29,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:35:29,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:35:29,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:35:29,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:35:29,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:35:29,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:35:29,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:35:29,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:35:29,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:35:29,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:35:29,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 18:35:29,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 18:35:29,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 18:35:29,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 18:35:29,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 18:35:29,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 18:35:29,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 18:35:29,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 18:35:29,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 18:35:29,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:35:29,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:35:29,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:35:29,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:35:29,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:35:29,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:35:29,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:35:29,326 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:35:29,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:35:29,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:35:29,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:35:29,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:35:29,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:35:29,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:35:29,327 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:35:29,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:35:29,327 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:35:29,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:35:29,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:35:29,328 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:35:29,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:35:29,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:35:29,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:29,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:35:29,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:35:29,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:35:29,330 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:35:29,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:35:29,607 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:35:29,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:35:29,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:35:29,612 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:35:29,613 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1052b.c [2020-07-10 18:35:29,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5203b1d8e/1ffa97659b174ad68afaf703906fceca/FLAG089e3e638 [2020-07-10 18:35:30,148 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:35:30,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1052b.c [2020-07-10 18:35:30,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5203b1d8e/1ffa97659b174ad68afaf703906fceca/FLAG089e3e638 [2020-07-10 18:35:30,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5203b1d8e/1ffa97659b174ad68afaf703906fceca [2020-07-10 18:35:30,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:35:30,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:35:30,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:30,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:35:30,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:35:30,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:30,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5f94ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30, skipping insertion in model container [2020-07-10 18:35:30,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:30,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:35:30,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:35:30,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:30,827 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:35:30,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:30,963 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:35:30,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30 WrapperNode [2020-07-10 18:35:30,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:30,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:35:30,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:35:30,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:35:30,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:30,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:30,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:30,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:31,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:31,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:31,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (1/1) ... [2020-07-10 18:35:31,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:35:31,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:35:31,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:35:31,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:35:31,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (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 [2020-07-10 18:35:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:35:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:35:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-07-10 18:35:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-10 18:35:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:35:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:35:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-07-10 18:35:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:35:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:35:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:35:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:35:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:35:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:35:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-10 18:35:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:35:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:35:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:35:31,652 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:35:31,652 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-10 18:35:31,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:31 BoogieIcfgContainer [2020-07-10 18:35:31,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:35:31,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:35:31,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:35:31,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:35:31,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:35:30" (1/3) ... [2020-07-10 18:35:31,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f3f023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:31, skipping insertion in model container [2020-07-10 18:35:31,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:30" (2/3) ... [2020-07-10 18:35:31,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f3f023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:31, skipping insertion in model container [2020-07-10 18:35:31,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:31" (3/3) ... [2020-07-10 18:35:31,667 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2020-07-10 18:35:31,678 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:35:31,687 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:35:31,702 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:35:31,725 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:35:31,726 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:35:31,726 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:35:31,726 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:35:31,726 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:35:31,727 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:35:31,727 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:35:31,727 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:35:31,745 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-07-10 18:35:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-10 18:35:31,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:31,760 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] [2020-07-10 18:35:31,761 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:31,768 INFO L82 PathProgramCache]: Analyzing trace with hash 270857975, now seen corresponding path program 1 times [2020-07-10 18:35:31,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:31,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694871571] [2020-07-10 18:35:31,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:32,025 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 [2020-07-10 18:35:32,026 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} #valid := #valid[0 := 0]; {91#true} is VALID [2020-07-10 18:35:32,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} assume 0 < #StackHeapBarrier; {91#true} is VALID [2020-07-10 18:35:32,027 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} ~huge_floor~0 := 1.0E30; {91#true} is VALID [2020-07-10 18:35:32,028 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} assume true; {91#true} is VALID [2020-07-10 18:35:32,029 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {91#true} {91#true} #154#return; {91#true} is VALID [2020-07-10 18:35:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:32,067 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 [2020-07-10 18:35:32,067 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} havoc ~i0~0; {91#true} is VALID [2020-07-10 18:35:32,068 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} havoc ~j0~0; {91#true} is VALID [2020-07-10 18:35:32,068 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} havoc ~i~0; {91#true} is VALID [2020-07-10 18:35:32,068 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} havoc ~ix~0; {91#true} is VALID [2020-07-10 18:35:32,070 INFO L280 TraceCheckUtils]: 5: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-10 18:35:32,070 INFO L280 TraceCheckUtils]: 6: Hoare triple {92#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {92#false} is VALID [2020-07-10 18:35:32,071 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 [2020-07-10 18:35:32,071 INFO L280 TraceCheckUtils]: 8: Hoare triple {92#false} assume !(~j0~0 < 23); {92#false} is VALID [2020-07-10 18:35:32,071 INFO L280 TraceCheckUtils]: 9: Hoare triple {92#false} assume !(~ix~0 % 4294967296 < 2139095040); {92#false} is VALID [2020-07-10 18:35:32,072 INFO L280 TraceCheckUtils]: 10: Hoare triple {92#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {92#false} is VALID [2020-07-10 18:35:32,072 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-10 18:35:32,072 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {92#false} {91#true} #158#return; {92#false} is VALID [2020-07-10 18:35:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:32,092 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 [2020-07-10 18:35:32,093 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} havoc ~ix~1; {91#true} is VALID [2020-07-10 18:35:32,094 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-10 18:35:32,095 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {92#false} is VALID [2020-07-10 18:35:32,095 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {92#false} is VALID [2020-07-10 18:35:32,096 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-10 18:35:32,096 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {92#false} {92#false} #160#return; {92#false} is VALID [2020-07-10 18:35:32,100 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 [2020-07-10 18:35:32,100 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 [2020-07-10 18:35:32,101 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} #valid := #valid[0 := 0]; {91#true} is VALID [2020-07-10 18:35:32,101 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} assume 0 < #StackHeapBarrier; {91#true} is VALID [2020-07-10 18:35:32,102 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} ~huge_floor~0 := 1.0E30; {91#true} is VALID [2020-07-10 18:35:32,102 INFO L280 TraceCheckUtils]: 5: Hoare triple {91#true} assume true; {91#true} is VALID [2020-07-10 18:35:32,102 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {91#true} {91#true} #154#return; {91#true} is VALID [2020-07-10 18:35:32,103 INFO L263 TraceCheckUtils]: 7: Hoare triple {91#true} call #t~ret8 := main(); {91#true} is VALID [2020-07-10 18:35:32,103 INFO L280 TraceCheckUtils]: 8: Hoare triple {91#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0); {91#true} is VALID [2020-07-10 18:35:32,107 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 [2020-07-10 18:35:32,108 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 [2020-07-10 18:35:32,109 INFO L280 TraceCheckUtils]: 11: Hoare triple {91#true} havoc ~i0~0; {91#true} is VALID [2020-07-10 18:35:32,109 INFO L280 TraceCheckUtils]: 12: Hoare triple {91#true} havoc ~j0~0; {91#true} is VALID [2020-07-10 18:35:32,110 INFO L280 TraceCheckUtils]: 13: Hoare triple {91#true} havoc ~i~0; {91#true} is VALID [2020-07-10 18:35:32,110 INFO L280 TraceCheckUtils]: 14: Hoare triple {91#true} havoc ~ix~0; {91#true} is VALID [2020-07-10 18:35:32,111 INFO L280 TraceCheckUtils]: 15: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-10 18:35:32,111 INFO L280 TraceCheckUtils]: 16: Hoare triple {92#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {92#false} is VALID [2020-07-10 18:35:32,112 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 [2020-07-10 18:35:32,112 INFO L280 TraceCheckUtils]: 18: Hoare triple {92#false} assume !(~j0~0 < 23); {92#false} is VALID [2020-07-10 18:35:32,112 INFO L280 TraceCheckUtils]: 19: Hoare triple {92#false} assume !(~ix~0 % 4294967296 < 2139095040); {92#false} is VALID [2020-07-10 18:35:32,113 INFO L280 TraceCheckUtils]: 20: Hoare triple {92#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {92#false} is VALID [2020-07-10 18:35:32,113 INFO L280 TraceCheckUtils]: 21: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-10 18:35:32,113 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {92#false} {91#true} #158#return; {92#false} is VALID [2020-07-10 18:35:32,114 INFO L280 TraceCheckUtils]: 23: Hoare triple {92#false} ~res~0 := #t~ret6; {92#false} is VALID [2020-07-10 18:35:32,114 INFO L280 TraceCheckUtils]: 24: Hoare triple {92#false} havoc #t~ret6; {92#false} is VALID [2020-07-10 18:35:32,115 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 [2020-07-10 18:35:32,115 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 [2020-07-10 18:35:32,120 INFO L280 TraceCheckUtils]: 27: Hoare triple {91#true} havoc ~ix~1; {91#true} is VALID [2020-07-10 18:35:32,122 INFO L280 TraceCheckUtils]: 28: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-10 18:35:32,123 INFO L280 TraceCheckUtils]: 29: Hoare triple {92#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {92#false} is VALID [2020-07-10 18:35:32,123 INFO L280 TraceCheckUtils]: 30: Hoare triple {92#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {92#false} is VALID [2020-07-10 18:35:32,124 INFO L280 TraceCheckUtils]: 31: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-10 18:35:32,124 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {92#false} {92#false} #160#return; {92#false} is VALID [2020-07-10 18:35:32,127 INFO L280 TraceCheckUtils]: 33: Hoare triple {92#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {92#false} is VALID [2020-07-10 18:35:32,127 INFO L280 TraceCheckUtils]: 34: Hoare triple {92#false} assume 0 == #t~ret7; {92#false} is VALID [2020-07-10 18:35:32,128 INFO L280 TraceCheckUtils]: 35: Hoare triple {92#false} havoc #t~ret7; {92#false} is VALID [2020-07-10 18:35:32,128 INFO L280 TraceCheckUtils]: 36: Hoare triple {92#false} assume !false; {92#false} is VALID [2020-07-10 18:35:32,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:35:32,140 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:32,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694871571] [2020-07-10 18:35:32,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:32,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:35:32,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149470514] [2020-07-10 18:35:32,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-10 18:35:32,158 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:32,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:35:32,252 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:32,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:35:32,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:32,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:35:32,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:35:32,267 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-07-10 18:35:32,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:32,975 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2020-07-10 18:35:32,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:35:32,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-10 18:35:32,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2020-07-10 18:35:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2020-07-10 18:35:33,010 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 191 transitions. [2020-07-10 18:35:33,267 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 191 edges. 191 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:33,283 INFO L225 Difference]: With dead ends: 160 [2020-07-10 18:35:33,283 INFO L226 Difference]: Without dead ends: 81 [2020-07-10 18:35:33,287 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 [2020-07-10 18:35:33,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-10 18:35:33,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-10 18:35:33,410 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:33,411 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:33,412 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:33,412 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:33,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:33,420 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-10 18:35:33,421 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-10 18:35:33,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:33,422 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:33,423 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:33,423 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-10 18:35:33,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:33,431 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-10 18:35:33,431 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-10 18:35:33,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:33,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:33,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:33,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-10 18:35:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-07-10 18:35:33,441 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 37 [2020-07-10 18:35:33,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:33,453 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-07-10 18:35:33,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:35:33,453 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 89 transitions. [2020-07-10 18:35:33,567 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:33,567 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-10 18:35:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-10 18:35:33,569 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:33,570 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] [2020-07-10 18:35:33,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:35:33,570 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:33,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:33,571 INFO L82 PathProgramCache]: Analyzing trace with hash 822923104, now seen corresponding path program 1 times [2020-07-10 18:35:33,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:33,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277502355] [2020-07-10 18:35:33,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:33,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:35:33,697 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.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 18:35:33,704 INFO L168 Benchmark]: Toolchain (without parser) took 3175.06 ms. Allocated memory was 136.8 MB in the beginning and 250.1 MB in the end (delta: 113.2 MB). Free memory was 101.7 MB in the beginning and 198.2 MB in the end (delta: -96.5 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:33,705 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 18:35:33,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.14 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 179.4 MB in the end (delta: -78.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:33,706 INFO L168 Benchmark]: Boogie Preprocessor took 58.09 ms. Allocated memory is still 200.8 MB. Free memory was 179.4 MB in the beginning and 177.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:33,707 INFO L168 Benchmark]: RCFGBuilder took 634.70 ms. Allocated memory is still 200.8 MB. Free memory was 177.0 MB in the beginning and 138.6 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:33,708 INFO L168 Benchmark]: TraceAbstraction took 2041.50 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 138.6 MB in the beginning and 198.2 MB in the end (delta: -59.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 18:35:33,713 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 0.19 ms. Allocated memory is still 136.8 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 432.14 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 179.4 MB in the end (delta: -78.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.09 ms. Allocated memory is still 200.8 MB. Free memory was 179.4 MB in the beginning and 177.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 634.70 ms. Allocated memory is still 200.8 MB. Free memory was 177.0 MB in the beginning and 138.6 MB in the end (delta: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2041.50 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 138.6 MB in the beginning and 198.2 MB in the end (delta: -59.7 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...