/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_1072b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 04:39:30,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 04:39:30,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 04:39:30,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 04:39:30,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 04:39:30,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 04:39:30,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 04:39:30,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 04:39:30,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 04:39:30,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 04:39:30,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 04:39:30,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 04:39:30,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 04:39:30,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 04:39:30,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 04:39:30,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 04:39:30,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 04:39:30,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 04:39:30,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 04:39:30,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 04:39:30,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 04:39:30,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 04:39:30,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 04:39:30,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 04:39:30,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 04:39:30,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 04:39:30,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 04:39:30,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 04:39:30,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 04:39:30,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 04:39:30,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 04:39:30,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 04:39:30,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 04:39:30,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 04:39:30,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 04:39:30,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 04:39:30,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 04:39:30,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 04:39:30,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 04:39:30,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 04:39:30,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 04:39:30,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 04:39:30,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 04:39:30,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 04:39:30,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 04:39:30,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 04:39:30,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 04:39:30,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 04:39:30,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 04:39:30,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 04:39:30,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 04:39:30,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 04:39:30,425 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 04:39:30,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 04:39:30,425 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 04:39:30,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 04:39:30,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 04:39:30,426 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 04:39:30,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 04:39:30,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 04:39:30,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:30,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 04:39:30,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 04:39:30,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 04:39:30,427 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 04:39:30,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 04:39:30,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 04:39:30,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 04:39:30,712 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 04:39:30,712 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 04:39:30,713 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1072b.c [2020-07-18 04:39:30,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73e308ab/1d924562fb3a4e168391e46e27974843/FLAGb7eeb442d [2020-07-18 04:39:31,217 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 04:39:31,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1072b.c [2020-07-18 04:39:31,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73e308ab/1d924562fb3a4e168391e46e27974843/FLAGb7eeb442d [2020-07-18 04:39:31,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73e308ab/1d924562fb3a4e168391e46e27974843 [2020-07-18 04:39:31,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 04:39:31,526 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 04:39:31,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:31,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 04:39:31,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 04:39:31,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253e11d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31, skipping insertion in model container [2020-07-18 04:39:31,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 04:39:31,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 04:39:31,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:31,751 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 04:39:31,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:31,799 INFO L208 MainTranslator]: Completed translation [2020-07-18 04:39:31,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31 WrapperNode [2020-07-18 04:39:31,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:31,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 04:39:31,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 04:39:31,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 04:39:31,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... [2020-07-18 04:39:31,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 04:39:31,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 04:39:31,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 04:39:31,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 04:39:31,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 04:39:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 04:39:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2020-07-18 04:39:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-18 04:39:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 04:39:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 04:39:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2020-07-18 04:39:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 04:39:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 04:39:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 04:39:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 04:39:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 04:39:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 04:39:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-18 04:39:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 04:39:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 04:39:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 04:39:32,607 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 04:39:32,607 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-18 04:39:32,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:32 BoogieIcfgContainer [2020-07-18 04:39:32,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 04:39:32,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 04:39:32,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 04:39:32,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 04:39:32,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 04:39:31" (1/3) ... [2020-07-18 04:39:32,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aec4be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:32, skipping insertion in model container [2020-07-18 04:39:32,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:31" (2/3) ... [2020-07-18 04:39:32,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aec4be4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:32, skipping insertion in model container [2020-07-18 04:39:32,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:32" (3/3) ... [2020-07-18 04:39:32,620 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b.c [2020-07-18 04:39:32,630 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 04:39:32,638 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 04:39:32,652 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 04:39:32,674 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 04:39:32,674 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 04:39:32,674 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 04:39:32,674 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 04:39:32,674 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 04:39:32,675 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 04:39:32,675 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 04:39:32,675 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 04:39:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-07-18 04:39:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-18 04:39:32,704 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:32,705 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] [2020-07-18 04:39:32,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:32,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:32,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1694901136, now seen corresponding path program 1 times [2020-07-18 04:39:32,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:32,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975162705] [2020-07-18 04:39:32,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:32,920 INFO L280 TraceCheckUtils]: 0: Hoare triple {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {86#true} is VALID [2020-07-18 04:39:32,921 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} #valid := #valid[0 := 0]; {86#true} is VALID [2020-07-18 04:39:32,921 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} assume 0 < #StackHeapBarrier; {86#true} is VALID [2020-07-18 04:39:32,922 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} assume true; {86#true} is VALID [2020-07-18 04:39:32,922 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {86#true} {86#true} #134#return; {86#true} is VALID [2020-07-18 04:39:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:32,955 INFO L280 TraceCheckUtils]: 0: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-18 04:39:32,955 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} havoc ~signbit~0; {86#true} is VALID [2020-07-18 04:39:32,956 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} havoc ~w~0; {86#true} is VALID [2020-07-18 04:39:32,956 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} havoc ~exponent_less_127~0; {86#true} is VALID [2020-07-18 04:39:32,957 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-18 04:39:32,958 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); {87#false} is VALID [2020-07-18 04:39:32,958 INFO L280 TraceCheckUtils]: 6: Hoare triple {87#false} ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {87#false} is VALID [2020-07-18 04:39:32,959 INFO L280 TraceCheckUtils]: 7: Hoare triple {87#false} assume !(~exponent_less_127~0 < 23); {87#false} is VALID [2020-07-18 04:39:32,959 INFO L280 TraceCheckUtils]: 8: Hoare triple {87#false} assume !(255 == ~exponent_less_127~0); {87#false} is VALID [2020-07-18 04:39:32,960 INFO L280 TraceCheckUtils]: 9: Hoare triple {87#false} #res := ~x; {87#false} is VALID [2020-07-18 04:39:32,960 INFO L280 TraceCheckUtils]: 10: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-18 04:39:32,960 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {87#false} {86#true} #138#return; {87#false} is VALID [2020-07-18 04:39:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:32,971 INFO L280 TraceCheckUtils]: 0: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-18 04:39:32,972 INFO L280 TraceCheckUtils]: 1: Hoare triple {86#true} havoc ~ix~0; {86#true} is VALID [2020-07-18 04:39:32,973 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-18 04:39:32,974 INFO L280 TraceCheckUtils]: 3: Hoare triple {87#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {87#false} is VALID [2020-07-18 04:39:32,974 INFO L280 TraceCheckUtils]: 4: Hoare triple {87#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {87#false} is VALID [2020-07-18 04:39:32,974 INFO L280 TraceCheckUtils]: 5: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-18 04:39:32,975 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {87#false} {87#false} #140#return; {87#false} is VALID [2020-07-18 04:39:32,977 INFO L263 TraceCheckUtils]: 0: Hoare triple {86#true} call ULTIMATE.init(); {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-18 04:39:32,977 INFO L280 TraceCheckUtils]: 1: Hoare triple {112#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {86#true} is VALID [2020-07-18 04:39:32,978 INFO L280 TraceCheckUtils]: 2: Hoare triple {86#true} #valid := #valid[0 := 0]; {86#true} is VALID [2020-07-18 04:39:32,978 INFO L280 TraceCheckUtils]: 3: Hoare triple {86#true} assume 0 < #StackHeapBarrier; {86#true} is VALID [2020-07-18 04:39:32,978 INFO L280 TraceCheckUtils]: 4: Hoare triple {86#true} assume true; {86#true} is VALID [2020-07-18 04:39:32,979 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {86#true} {86#true} #134#return; {86#true} is VALID [2020-07-18 04:39:32,979 INFO L263 TraceCheckUtils]: 6: Hoare triple {86#true} call #t~ret10 := main(); {86#true} is VALID [2020-07-18 04:39:32,980 INFO L280 TraceCheckUtils]: 7: Hoare triple {86#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(~someUnaryFLOAToperation(1.0), 0.0); {86#true} is VALID [2020-07-18 04:39:32,982 INFO L263 TraceCheckUtils]: 8: Hoare triple {86#true} call #t~ret8 := trunc_float(~x~0); {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:32,982 INFO L280 TraceCheckUtils]: 9: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-18 04:39:32,983 INFO L280 TraceCheckUtils]: 10: Hoare triple {86#true} havoc ~signbit~0; {86#true} is VALID [2020-07-18 04:39:32,983 INFO L280 TraceCheckUtils]: 11: Hoare triple {86#true} havoc ~w~0; {86#true} is VALID [2020-07-18 04:39:32,983 INFO L280 TraceCheckUtils]: 12: Hoare triple {86#true} havoc ~exponent_less_127~0; {86#true} is VALID [2020-07-18 04:39:32,985 INFO L280 TraceCheckUtils]: 13: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-18 04:39:32,986 INFO L280 TraceCheckUtils]: 14: Hoare triple {87#false} ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); {87#false} is VALID [2020-07-18 04:39:32,986 INFO L280 TraceCheckUtils]: 15: Hoare triple {87#false} ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; {87#false} is VALID [2020-07-18 04:39:32,987 INFO L280 TraceCheckUtils]: 16: Hoare triple {87#false} assume !(~exponent_less_127~0 < 23); {87#false} is VALID [2020-07-18 04:39:32,987 INFO L280 TraceCheckUtils]: 17: Hoare triple {87#false} assume !(255 == ~exponent_less_127~0); {87#false} is VALID [2020-07-18 04:39:32,987 INFO L280 TraceCheckUtils]: 18: Hoare triple {87#false} #res := ~x; {87#false} is VALID [2020-07-18 04:39:32,988 INFO L280 TraceCheckUtils]: 19: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-18 04:39:32,988 INFO L275 TraceCheckUtils]: 20: Hoare quadruple {87#false} {86#true} #138#return; {87#false} is VALID [2020-07-18 04:39:32,988 INFO L280 TraceCheckUtils]: 21: Hoare triple {87#false} ~res~0 := #t~ret8; {87#false} is VALID [2020-07-18 04:39:32,989 INFO L280 TraceCheckUtils]: 22: Hoare triple {87#false} havoc #t~ret8; {87#false} is VALID [2020-07-18 04:39:32,989 INFO L263 TraceCheckUtils]: 23: Hoare triple {87#false} call #t~ret9 := isinf_float(~res~0); {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:32,989 INFO L280 TraceCheckUtils]: 24: Hoare triple {113#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {86#true} is VALID [2020-07-18 04:39:32,990 INFO L280 TraceCheckUtils]: 25: Hoare triple {86#true} havoc ~ix~0; {86#true} is VALID [2020-07-18 04:39:32,996 INFO L280 TraceCheckUtils]: 26: Hoare triple {86#true} assume !true; {87#false} is VALID [2020-07-18 04:39:32,997 INFO L280 TraceCheckUtils]: 27: Hoare triple {87#false} ~ix~0 := ~bitwiseAnd(~ix~0, 2147483647); {87#false} is VALID [2020-07-18 04:39:32,997 INFO L280 TraceCheckUtils]: 28: Hoare triple {87#false} #res := (if 2139095040 == ~ix~0 then 1 else 0); {87#false} is VALID [2020-07-18 04:39:32,998 INFO L280 TraceCheckUtils]: 29: Hoare triple {87#false} assume true; {87#false} is VALID [2020-07-18 04:39:32,998 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {87#false} {87#false} #140#return; {87#false} is VALID [2020-07-18 04:39:32,998 INFO L280 TraceCheckUtils]: 31: Hoare triple {87#false} assume -2147483648 <= #t~ret9 && #t~ret9 <= 2147483647; {87#false} is VALID [2020-07-18 04:39:32,999 INFO L280 TraceCheckUtils]: 32: Hoare triple {87#false} assume 0 == #t~ret9; {87#false} is VALID [2020-07-18 04:39:32,999 INFO L280 TraceCheckUtils]: 33: Hoare triple {87#false} havoc #t~ret9; {87#false} is VALID [2020-07-18 04:39:32,999 INFO L280 TraceCheckUtils]: 34: Hoare triple {87#false} assume !false; {87#false} is VALID [2020-07-18 04:39:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 04:39:33,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975162705] [2020-07-18 04:39:33,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 04:39:33,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 04:39:33,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567481734] [2020-07-18 04:39:33,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-18 04:39:33,031 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 04:39:33,035 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 04:39:33,100 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:33,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 04:39:33,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 04:39:33,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 04:39:33,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 04:39:33,115 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 4 states. [2020-07-18 04:39:33,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:33,728 INFO L93 Difference]: Finished difference Result 152 states and 175 transitions. [2020-07-18 04:39:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 04:39:33,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-18 04:39:33,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 04:39:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 175 transitions. [2020-07-18 04:39:33,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 175 transitions. [2020-07-18 04:39:33,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 175 transitions. [2020-07-18 04:39:33,939 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 175 edges. 175 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:33,957 INFO L225 Difference]: With dead ends: 152 [2020-07-18 04:39:33,957 INFO L226 Difference]: Without dead ends: 76 [2020-07-18 04:39:33,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 04:39:33,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-18 04:39:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-07-18 04:39:34,063 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 04:39:34,063 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 76 states. [2020-07-18 04:39:34,064 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-18 04:39:34,064 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-18 04:39:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:34,072 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-07-18 04:39:34,072 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-07-18 04:39:34,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:34,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:34,074 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 76 states. [2020-07-18 04:39:34,074 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 76 states. [2020-07-18 04:39:34,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:34,081 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2020-07-18 04:39:34,081 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-07-18 04:39:34,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:34,082 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:34,083 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 04:39:34,083 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 04:39:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-18 04:39:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2020-07-18 04:39:34,090 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 35 [2020-07-18 04:39:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 04:39:34,091 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2020-07-18 04:39:34,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 04:39:34,091 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 76 states and 78 transitions. [2020-07-18 04:39:34,192 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-07-18 04:39:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-18 04:39:34,207 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:34,208 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] [2020-07-18 04:39:34,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 04:39:34,208 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:34,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:34,209 INFO L82 PathProgramCache]: Analyzing trace with hash -331067037, now seen corresponding path program 1 times [2020-07-18 04:39:34,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:34,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080524142] [2020-07-18 04:39:34,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:34,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 04:39:34,366 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:96) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 04:39:34,372 INFO L168 Benchmark]: Toolchain (without parser) took 2847.01 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 102.1 MB in the beginning and 212.4 MB in the end (delta: -110.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 04:39:34,373 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 04:39:34,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.61 ms. Allocated memory is still 145.2 MB. Free memory was 101.7 MB in the beginning and 90.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:34,375 INFO L168 Benchmark]: Boogie Preprocessor took 136.17 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 90.4 MB in the beginning and 179.8 MB in the end (delta: -89.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:34,376 INFO L168 Benchmark]: RCFGBuilder took 675.36 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 143.6 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:34,377 INFO L168 Benchmark]: TraceAbstraction took 1756.01 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 142.9 MB in the beginning and 212.4 MB in the end (delta: -69.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 04:39:34,381 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 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 272.61 ms. Allocated memory is still 145.2 MB. Free memory was 101.7 MB in the beginning and 90.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.17 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 90.4 MB in the beginning and 179.8 MB in the end (delta: -89.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 675.36 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 143.6 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1756.01 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 142.9 MB in the beginning and 212.4 MB in the end (delta: -69.5 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...