/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_0730a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:13:27,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:13:27,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:13:27,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:13:27,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:13:27,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:13:27,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:13:27,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:13:27,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:13:27,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:13:27,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:13:27,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:13:27,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:13:27,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:13:27,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:13:27,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:13:27,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:13:27,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:13:27,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:13:27,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:13:27,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:13:27,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:13:27,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:13:27,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:13:27,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:13:27,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:13:27,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:13:27,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:13:27,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:13:27,489 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:13:27,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:13:27,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:13:27,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:13:27,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:13:27,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:13:27,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:13:27,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:13:27,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:13:27,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:13:27,492 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:13:27,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:13:27,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:13:27,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:13:27,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:13:27,493 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:13:27,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:13:27,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:13:27,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:27,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:13:27,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:13:27,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:13:27,495 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:13:27,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:13:27,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:13:27,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:13:27,793 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:13:27,794 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:13:27,794 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c [2020-07-18 00:13:27,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76db181bf/7b86ca6da8aa4d1189a67f584813d418/FLAG280ad4265 [2020-07-18 00:13:28,367 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:13:28,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730a.c [2020-07-18 00:13:28,375 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76db181bf/7b86ca6da8aa4d1189a67f584813d418/FLAG280ad4265 [2020-07-18 00:13:28,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76db181bf/7b86ca6da8aa4d1189a67f584813d418 [2020-07-18 00:13:28,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:13:28,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:13:28,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:28,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:13:28,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:13:28,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:28" (1/1) ... [2020-07-18 00:13:28,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162de3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:28, skipping insertion in model container [2020-07-18 00:13:28,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:28" (1/1) ... [2020-07-18 00:13:28,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:13:28,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:13:29,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:29,058 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:13:29,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:29,228 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:13:29,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29 WrapperNode [2020-07-18 00:13:29,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:29,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:13:29,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:13:29,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:13:29,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... [2020-07-18 00:13:29,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:13:29,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:13:29,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:13:29,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:13:29,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:13:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:13:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-18 00:13:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-18 00:13:29,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:13:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:13:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:13:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 00:13:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-18 00:13:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:13:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:13:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:13:30,005 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:13:30,005 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-18 00:13:30,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:30 BoogieIcfgContainer [2020-07-18 00:13:30,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:13:30,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:13:30,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:13:30,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:13:30,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:13:28" (1/3) ... [2020-07-18 00:13:30,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab21a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:30, skipping insertion in model container [2020-07-18 00:13:30,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:29" (2/3) ... [2020-07-18 00:13:30,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab21a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:30, skipping insertion in model container [2020-07-18 00:13:30,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:30" (3/3) ... [2020-07-18 00:13:30,021 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730a.c [2020-07-18 00:13:30,032 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:13:30,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:13:30,055 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:13:30,078 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:13:30,078 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:13:30,079 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:13:30,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:13:30,079 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:13:30,079 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:13:30,080 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:13:30,080 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:13:30,098 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-07-18 00:13:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-18 00:13:30,113 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:30,117 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] [2020-07-18 00:13:30,118 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:30,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1347664399, now seen corresponding path program 1 times [2020-07-18 00:13:30,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:30,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85092196] [2020-07-18 00:13:30,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:30,361 INFO L280 TraceCheckUtils]: 0: Hoare triple {152#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0; {120#true} is VALID [2020-07-18 00:13:30,362 INFO L280 TraceCheckUtils]: 1: Hoare triple {120#true} #valid := #valid[0 := 0]; {120#true} is VALID [2020-07-18 00:13:30,362 INFO L280 TraceCheckUtils]: 2: Hoare triple {120#true} assume 0 < #StackHeapBarrier; {120#true} is VALID [2020-07-18 00:13:30,363 INFO L280 TraceCheckUtils]: 3: Hoare triple {120#true} ~one_sqrt~0 := 1.0; {120#true} is VALID [2020-07-18 00:13:30,364 INFO L280 TraceCheckUtils]: 4: Hoare triple {120#true} ~tiny_sqrt~0 := 1.0E-30; {120#true} is VALID [2020-07-18 00:13:30,364 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#true} assume true; {120#true} is VALID [2020-07-18 00:13:30,364 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {120#true} {120#true} #211#return; {120#true} is VALID [2020-07-18 00:13:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:30,402 INFO L280 TraceCheckUtils]: 0: Hoare triple {153#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {120#true} is VALID [2020-07-18 00:13:30,402 INFO L280 TraceCheckUtils]: 1: Hoare triple {120#true} havoc ~z~0; {120#true} is VALID [2020-07-18 00:13:30,403 INFO L280 TraceCheckUtils]: 2: Hoare triple {120#true} havoc ~r~0; {120#true} is VALID [2020-07-18 00:13:30,403 INFO L280 TraceCheckUtils]: 3: Hoare triple {120#true} havoc ~hx~0; {120#true} is VALID [2020-07-18 00:13:30,403 INFO L280 TraceCheckUtils]: 4: Hoare triple {120#true} havoc ~ix~0; {120#true} is VALID [2020-07-18 00:13:30,404 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#true} havoc ~s~0; {120#true} is VALID [2020-07-18 00:13:30,404 INFO L280 TraceCheckUtils]: 6: Hoare triple {120#true} havoc ~q~0; {120#true} is VALID [2020-07-18 00:13:30,405 INFO L280 TraceCheckUtils]: 7: Hoare triple {120#true} havoc ~m~0; {120#true} is VALID [2020-07-18 00:13:30,405 INFO L280 TraceCheckUtils]: 8: Hoare triple {120#true} havoc ~t~0; {120#true} is VALID [2020-07-18 00:13:30,406 INFO L280 TraceCheckUtils]: 9: Hoare triple {120#true} havoc ~i~0; {120#true} is VALID [2020-07-18 00:13:30,407 INFO L280 TraceCheckUtils]: 10: Hoare triple {120#true} assume !true; {121#false} is VALID [2020-07-18 00:13:30,407 INFO L280 TraceCheckUtils]: 11: Hoare triple {121#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {121#false} is VALID [2020-07-18 00:13:30,408 INFO L280 TraceCheckUtils]: 12: Hoare triple {121#false} assume !(~hx~0 % 4294967296 < 2139095040); {121#false} is VALID [2020-07-18 00:13:30,408 INFO L280 TraceCheckUtils]: 13: Hoare triple {121#false} #res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {121#false} is VALID [2020-07-18 00:13:30,408 INFO L280 TraceCheckUtils]: 14: Hoare triple {121#false} assume true; {121#false} is VALID [2020-07-18 00:13:30,409 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {121#false} {120#true} #207#return; {121#false} is VALID [2020-07-18 00:13:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:13:30,424 INFO L280 TraceCheckUtils]: 0: Hoare triple {153#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {120#true} is VALID [2020-07-18 00:13:30,425 INFO L280 TraceCheckUtils]: 1: Hoare triple {120#true} havoc ~ix~1; {120#true} is VALID [2020-07-18 00:13:30,426 INFO L280 TraceCheckUtils]: 2: Hoare triple {120#true} assume !true; {121#false} is VALID [2020-07-18 00:13:30,426 INFO L280 TraceCheckUtils]: 3: Hoare triple {121#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {121#false} is VALID [2020-07-18 00:13:30,427 INFO L280 TraceCheckUtils]: 4: Hoare triple {121#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {121#false} is VALID [2020-07-18 00:13:30,427 INFO L280 TraceCheckUtils]: 5: Hoare triple {121#false} assume true; {121#false} is VALID [2020-07-18 00:13:30,427 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {121#false} {121#false} #209#return; {121#false} is VALID [2020-07-18 00:13:30,430 INFO L263 TraceCheckUtils]: 0: Hoare triple {120#true} call ULTIMATE.init(); {152#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} is VALID [2020-07-18 00:13:30,430 INFO L280 TraceCheckUtils]: 1: Hoare triple {152#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~tiny_sqrt~0 |old(~tiny_sqrt~0)|) (= ~one_sqrt~0 |old(~one_sqrt~0)|))} #NULL.base, #NULL.offset := 0, 0; {120#true} is VALID [2020-07-18 00:13:30,430 INFO L280 TraceCheckUtils]: 2: Hoare triple {120#true} #valid := #valid[0 := 0]; {120#true} is VALID [2020-07-18 00:13:30,431 INFO L280 TraceCheckUtils]: 3: Hoare triple {120#true} assume 0 < #StackHeapBarrier; {120#true} is VALID [2020-07-18 00:13:30,431 INFO L280 TraceCheckUtils]: 4: Hoare triple {120#true} ~one_sqrt~0 := 1.0; {120#true} is VALID [2020-07-18 00:13:30,432 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#true} ~tiny_sqrt~0 := 1.0E-30; {120#true} is VALID [2020-07-18 00:13:30,432 INFO L280 TraceCheckUtils]: 6: Hoare triple {120#true} assume true; {120#true} is VALID [2020-07-18 00:13:30,432 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {120#true} {120#true} #211#return; {120#true} is VALID [2020-07-18 00:13:30,433 INFO L263 TraceCheckUtils]: 8: Hoare triple {120#true} call #t~ret9 := main(); {120#true} is VALID [2020-07-18 00:13:30,433 INFO L280 TraceCheckUtils]: 9: Hoare triple {120#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); {120#true} is VALID [2020-07-18 00:13:30,435 INFO L263 TraceCheckUtils]: 10: Hoare triple {120#true} call #t~ret7 := __ieee754_sqrtf(~x~0); {153#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:30,435 INFO L280 TraceCheckUtils]: 11: Hoare triple {153#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {120#true} is VALID [2020-07-18 00:13:30,436 INFO L280 TraceCheckUtils]: 12: Hoare triple {120#true} havoc ~z~0; {120#true} is VALID [2020-07-18 00:13:30,436 INFO L280 TraceCheckUtils]: 13: Hoare triple {120#true} havoc ~r~0; {120#true} is VALID [2020-07-18 00:13:30,436 INFO L280 TraceCheckUtils]: 14: Hoare triple {120#true} havoc ~hx~0; {120#true} is VALID [2020-07-18 00:13:30,437 INFO L280 TraceCheckUtils]: 15: Hoare triple {120#true} havoc ~ix~0; {120#true} is VALID [2020-07-18 00:13:30,437 INFO L280 TraceCheckUtils]: 16: Hoare triple {120#true} havoc ~s~0; {120#true} is VALID [2020-07-18 00:13:30,437 INFO L280 TraceCheckUtils]: 17: Hoare triple {120#true} havoc ~q~0; {120#true} is VALID [2020-07-18 00:13:30,438 INFO L280 TraceCheckUtils]: 18: Hoare triple {120#true} havoc ~m~0; {120#true} is VALID [2020-07-18 00:13:30,438 INFO L280 TraceCheckUtils]: 19: Hoare triple {120#true} havoc ~t~0; {120#true} is VALID [2020-07-18 00:13:30,438 INFO L280 TraceCheckUtils]: 20: Hoare triple {120#true} havoc ~i~0; {120#true} is VALID [2020-07-18 00:13:30,439 INFO L280 TraceCheckUtils]: 21: Hoare triple {120#true} assume !true; {121#false} is VALID [2020-07-18 00:13:30,440 INFO L280 TraceCheckUtils]: 22: Hoare triple {121#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {121#false} is VALID [2020-07-18 00:13:30,440 INFO L280 TraceCheckUtils]: 23: Hoare triple {121#false} assume !(~hx~0 % 4294967296 < 2139095040); {121#false} is VALID [2020-07-18 00:13:30,441 INFO L280 TraceCheckUtils]: 24: Hoare triple {121#false} #res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {121#false} is VALID [2020-07-18 00:13:30,441 INFO L280 TraceCheckUtils]: 25: Hoare triple {121#false} assume true; {121#false} is VALID [2020-07-18 00:13:30,441 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {121#false} {120#true} #207#return; {121#false} is VALID [2020-07-18 00:13:30,442 INFO L280 TraceCheckUtils]: 27: Hoare triple {121#false} ~res~0 := #t~ret7; {121#false} is VALID [2020-07-18 00:13:30,442 INFO L280 TraceCheckUtils]: 28: Hoare triple {121#false} havoc #t~ret7; {121#false} is VALID [2020-07-18 00:13:30,442 INFO L263 TraceCheckUtils]: 29: Hoare triple {121#false} call #t~ret8 := isinf_float(~res~0); {153#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 00:13:30,443 INFO L280 TraceCheckUtils]: 30: Hoare triple {153#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {120#true} is VALID [2020-07-18 00:13:30,443 INFO L280 TraceCheckUtils]: 31: Hoare triple {120#true} havoc ~ix~1; {120#true} is VALID [2020-07-18 00:13:30,444 INFO L280 TraceCheckUtils]: 32: Hoare triple {120#true} assume !true; {121#false} is VALID [2020-07-18 00:13:30,445 INFO L280 TraceCheckUtils]: 33: Hoare triple {121#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {121#false} is VALID [2020-07-18 00:13:30,445 INFO L280 TraceCheckUtils]: 34: Hoare triple {121#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {121#false} is VALID [2020-07-18 00:13:30,445 INFO L280 TraceCheckUtils]: 35: Hoare triple {121#false} assume true; {121#false} is VALID [2020-07-18 00:13:30,446 INFO L275 TraceCheckUtils]: 36: Hoare quadruple {121#false} {121#false} #209#return; {121#false} is VALID [2020-07-18 00:13:30,446 INFO L280 TraceCheckUtils]: 37: Hoare triple {121#false} assume -2147483648 <= #t~ret8 && #t~ret8 <= 2147483647; {121#false} is VALID [2020-07-18 00:13:30,446 INFO L280 TraceCheckUtils]: 38: Hoare triple {121#false} assume 0 == #t~ret8; {121#false} is VALID [2020-07-18 00:13:30,447 INFO L280 TraceCheckUtils]: 39: Hoare triple {121#false} havoc #t~ret8; {121#false} is VALID [2020-07-18 00:13:30,447 INFO L280 TraceCheckUtils]: 40: Hoare triple {121#false} assume !false; {121#false} is VALID [2020-07-18 00:13:30,454 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 00:13:30,456 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:30,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85092196] [2020-07-18 00:13:30,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:13:30,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 00:13:30,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732950436] [2020-07-18 00:13:30,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-07-18 00:13:30,471 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:13:30,475 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 00:13:30,547 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:30,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 00:13:30,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:13:30,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 00:13:30,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 00:13:30,560 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 4 states. [2020-07-18 00:13:31,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:31,477 INFO L93 Difference]: Finished difference Result 212 states and 251 transitions. [2020-07-18 00:13:31,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 00:13:31,477 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-07-18 00:13:31,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:13:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:31,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2020-07-18 00:13:31,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 00:13:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2020-07-18 00:13:31,508 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 251 transitions. [2020-07-18 00:13:31,819 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 251 edges. 251 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:31,837 INFO L225 Difference]: With dead ends: 212 [2020-07-18 00:13:31,837 INFO L226 Difference]: Without dead ends: 110 [2020-07-18 00:13:31,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:13:31,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-18 00:13:31,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-07-18 00:13:31,977 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:13:31,978 INFO L82 GeneralOperation]: Start isEquivalent. First operand 110 states. Second operand 110 states. [2020-07-18 00:13:31,979 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-18 00:13:31,979 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-18 00:13:31,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:31,988 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2020-07-18 00:13:31,988 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2020-07-18 00:13:31,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:31,990 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:31,990 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-18 00:13:31,990 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-18 00:13:31,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:13:31,999 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2020-07-18 00:13:31,999 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2020-07-18 00:13:32,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:13:32,001 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:13:32,001 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:13:32,001 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:13:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-18 00:13:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2020-07-18 00:13:32,009 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 41 [2020-07-18 00:13:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:13:32,009 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2020-07-18 00:13:32,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 00:13:32,010 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 110 states and 120 transitions. [2020-07-18 00:13:32,144 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 120 edges. 120 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:13:32,145 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2020-07-18 00:13:32,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-18 00:13:32,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:32,149 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, 1, 1, 1, 1] [2020-07-18 00:13:32,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:13:32,150 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:32,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:32,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1528682335, now seen corresponding path program 1 times [2020-07-18 00:13:32,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:32,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565346640] [2020-07-18 00:13:32,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:32,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:13:32,335 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.model.Model.map(Model.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.add(ModelBuilder.java:123) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.fillInFunctions(ModelBuilder.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.(ModelBuilder.java:49) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.fillInModel(CClosure.java:1312) at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.(Model.java:120) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.buildModel(SMTInterpol.java:1139) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1004) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.getValues(SmtUtils.java:2102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.getValue(TraceCheck.java:407) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lambda$0(TraceCheck.java:381) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:390) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:349) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:228) 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.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:283) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 00:13:32,345 INFO L168 Benchmark]: Toolchain (without parser) took 3633.06 ms. Allocated memory was 142.1 MB in the beginning and 255.3 MB in the end (delta: 113.2 MB). Free memory was 100.4 MB in the beginning and 139.4 MB in the end (delta: -39.0 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:32,346 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-18 00:13:32,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.06 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 100.0 MB in the beginning and 176.0 MB in the end (delta: -76.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:32,349 INFO L168 Benchmark]: Boogie Preprocessor took 50.55 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 173.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:32,350 INFO L168 Benchmark]: RCFGBuilder took 731.08 ms. Allocated memory is still 199.2 MB. Free memory was 173.8 MB in the beginning and 127.9 MB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:32,351 INFO L168 Benchmark]: TraceAbstraction took 2327.52 ms. Allocated memory was 199.2 MB in the beginning and 255.3 MB in the end (delta: 56.1 MB). Free memory was 127.9 MB in the beginning and 139.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:32,364 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 0.25 ms. Allocated memory is still 142.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 517.06 ms. Allocated memory was 142.1 MB in the beginning and 199.2 MB in the end (delta: 57.1 MB). Free memory was 100.0 MB in the beginning and 176.0 MB in the end (delta: -76.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.55 ms. Allocated memory is still 199.2 MB. Free memory was 176.0 MB in the beginning and 173.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 731.08 ms. Allocated memory is still 199.2 MB. Free memory was 173.8 MB in the beginning and 127.9 MB in the end (delta: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2327.52 ms. Allocated memory was 199.2 MB in the beginning and 255.3 MB in the end (delta: 56.1 MB). Free memory was 127.9 MB in the beginning and 139.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 44.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...