/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_0730b.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 18:35:16,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 18:35:16,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 18:35:16,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 18:35:16,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 18:35:16,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 18:35:16,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 18:35:16,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 18:35:16,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 18:35:16,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 18:35:16,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 18:35:16,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 18:35:16,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 18:35:16,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 18:35:16,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 18:35:16,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 18:35:16,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 18:35:16,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 18:35:16,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 18:35:16,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 18:35:16,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 18:35:16,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 18:35:16,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 18:35:16,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 18:35:16,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 18:35:16,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 18:35:16,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 18:35:16,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 18:35:16,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 18:35:16,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 18:35:16,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 18:35:16,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 18:35:16,386 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 18:35:16,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 18:35:16,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 18:35:16,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 18:35:16,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 18:35:16,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 18:35:16,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 18:35:16,387 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 18:35:16,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 18:35:16,388 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 18:35:16,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 18:35:16,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 18:35:16,388 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 18:35:16,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 18:35:16,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 18:35:16,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:16,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 18:35:16,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 18:35:16,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 18:35:16,390 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 18:35:16,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 18:35:16,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 18:35:16,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 18:35:16,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 18:35:16,716 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 18:35:16,717 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-07-10 18:35:16,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e08bb74/1d31034d2d00408da28163d0fba20935/FLAG53f9b4d20 [2020-07-10 18:35:17,178 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 18:35:17,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b.c [2020-07-10 18:35:17,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e08bb74/1d31034d2d00408da28163d0fba20935/FLAG53f9b4d20 [2020-07-10 18:35:17,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e08bb74/1d31034d2d00408da28163d0fba20935 [2020-07-10 18:35:17,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 18:35:17,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 18:35:17,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:17,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 18:35:17,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 18:35:17,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:17" (1/1) ... [2020-07-10 18:35:17,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eedc7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:17, skipping insertion in model container [2020-07-10 18:35:17,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 06:35:17" (1/1) ... [2020-07-10 18:35:17,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 18:35:17,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 18:35:17,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:17,913 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 18:35:18,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 18:35:18,083 INFO L208 MainTranslator]: Completed translation [2020-07-10 18:35:18,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18 WrapperNode [2020-07-10 18:35:18,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 18:35:18,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 18:35:18,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 18:35:18,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 18:35:18,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... [2020-07-10 18:35:18,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 18:35:18,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 18:35:18,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 18:35:18,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 18:35:18,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 18:35:18,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 18:35:18,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 18:35:18,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-07-10 18:35:18,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-07-10 18:35:18,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 18:35:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 18:35:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-07-10 18:35:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-07-10 18:35:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-10 18:35:18,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-10 18:35:18,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 18:35:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 18:35:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 18:35:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-10 18:35:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-07-10 18:35:18,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 18:35:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 18:35:18,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 18:35:18,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 18:35:18,826 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-10 18:35:18,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:18 BoogieIcfgContainer [2020-07-10 18:35:18,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 18:35:18,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 18:35:18,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 18:35:18,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 18:35:18,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 06:35:17" (1/3) ... [2020-07-10 18:35:18,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3bd487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:18, skipping insertion in model container [2020-07-10 18:35:18,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 06:35:18" (2/3) ... [2020-07-10 18:35:18,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3bd487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 06:35:18, skipping insertion in model container [2020-07-10 18:35:18,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 06:35:18" (3/3) ... [2020-07-10 18:35:18,840 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-07-10 18:35:18,849 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 18:35:18,856 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 18:35:18,867 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 18:35:18,884 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 18:35:18,885 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 18:35:18,885 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 18:35:18,885 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 18:35:18,885 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 18:35:18,886 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 18:35:18,886 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 18:35:18,886 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 18:35:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states. [2020-07-10 18:35:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-10 18:35:18,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:18,914 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] [2020-07-10 18:35:18,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:18,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:18,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1619390018, now seen corresponding path program 1 times [2020-07-10 18:35:18,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:18,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000147044] [2020-07-10 18:35:18,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:19,144 INFO L280 TraceCheckUtils]: 0: Hoare triple {149#(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; {124#true} is VALID [2020-07-10 18:35:19,145 INFO L280 TraceCheckUtils]: 1: Hoare triple {124#true} #valid := #valid[0 := 0]; {124#true} is VALID [2020-07-10 18:35:19,145 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#true} assume 0 < #StackHeapBarrier; {124#true} is VALID [2020-07-10 18:35:19,146 INFO L280 TraceCheckUtils]: 3: Hoare triple {124#true} ~one_sqrt~0 := 1.0; {124#true} is VALID [2020-07-10 18:35:19,147 INFO L280 TraceCheckUtils]: 4: Hoare triple {124#true} ~tiny_sqrt~0 := 1.0E-30; {124#true} is VALID [2020-07-10 18:35:19,147 INFO L280 TraceCheckUtils]: 5: Hoare triple {124#true} assume true; {124#true} is VALID [2020-07-10 18:35:19,147 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {124#true} {124#true} #220#return; {124#true} is VALID [2020-07-10 18:35:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 18:35:19,182 INFO L280 TraceCheckUtils]: 0: Hoare triple {150#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {124#true} is VALID [2020-07-10 18:35:19,183 INFO L280 TraceCheckUtils]: 1: Hoare triple {124#true} havoc ~z~0; {124#true} is VALID [2020-07-10 18:35:19,184 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#true} havoc ~r~0; {124#true} is VALID [2020-07-10 18:35:19,184 INFO L280 TraceCheckUtils]: 3: Hoare triple {124#true} havoc ~hx~0; {124#true} is VALID [2020-07-10 18:35:19,184 INFO L280 TraceCheckUtils]: 4: Hoare triple {124#true} havoc ~ix~0; {124#true} is VALID [2020-07-10 18:35:19,185 INFO L280 TraceCheckUtils]: 5: Hoare triple {124#true} havoc ~s~0; {124#true} is VALID [2020-07-10 18:35:19,185 INFO L280 TraceCheckUtils]: 6: Hoare triple {124#true} havoc ~q~0; {124#true} is VALID [2020-07-10 18:35:19,186 INFO L280 TraceCheckUtils]: 7: Hoare triple {124#true} havoc ~m~0; {124#true} is VALID [2020-07-10 18:35:19,186 INFO L280 TraceCheckUtils]: 8: Hoare triple {124#true} havoc ~t~0; {124#true} is VALID [2020-07-10 18:35:19,187 INFO L280 TraceCheckUtils]: 9: Hoare triple {124#true} havoc ~i~0; {124#true} is VALID [2020-07-10 18:35:19,188 INFO L280 TraceCheckUtils]: 10: Hoare triple {124#true} assume !true; {125#false} is VALID [2020-07-10 18:35:19,188 INFO L280 TraceCheckUtils]: 11: Hoare triple {125#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {125#false} is VALID [2020-07-10 18:35:19,189 INFO L280 TraceCheckUtils]: 12: Hoare triple {125#false} assume !(~hx~0 % 4294967296 < 2139095040); {125#false} is VALID [2020-07-10 18:35:19,189 INFO L280 TraceCheckUtils]: 13: Hoare triple {125#false} #res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {125#false} is VALID [2020-07-10 18:35:19,190 INFO L280 TraceCheckUtils]: 14: Hoare triple {125#false} assume true; {125#false} is VALID [2020-07-10 18:35:19,190 INFO L275 TraceCheckUtils]: 15: Hoare quadruple {125#false} {124#true} #216#return; {125#false} is VALID [2020-07-10 18:35:19,193 INFO L263 TraceCheckUtils]: 0: Hoare triple {124#true} call ULTIMATE.init(); {149#(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 [2020-07-10 18:35:19,194 INFO L280 TraceCheckUtils]: 1: Hoare triple {149#(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; {124#true} is VALID [2020-07-10 18:35:19,194 INFO L280 TraceCheckUtils]: 2: Hoare triple {124#true} #valid := #valid[0 := 0]; {124#true} is VALID [2020-07-10 18:35:19,195 INFO L280 TraceCheckUtils]: 3: Hoare triple {124#true} assume 0 < #StackHeapBarrier; {124#true} is VALID [2020-07-10 18:35:19,195 INFO L280 TraceCheckUtils]: 4: Hoare triple {124#true} ~one_sqrt~0 := 1.0; {124#true} is VALID [2020-07-10 18:35:19,195 INFO L280 TraceCheckUtils]: 5: Hoare triple {124#true} ~tiny_sqrt~0 := 1.0E-30; {124#true} is VALID [2020-07-10 18:35:19,196 INFO L280 TraceCheckUtils]: 6: Hoare triple {124#true} assume true; {124#true} is VALID [2020-07-10 18:35:19,196 INFO L275 TraceCheckUtils]: 7: Hoare quadruple {124#true} {124#true} #220#return; {124#true} is VALID [2020-07-10 18:35:19,197 INFO L263 TraceCheckUtils]: 8: Hoare triple {124#true} call #t~ret10 := main(); {124#true} is VALID [2020-07-10 18:35:19,197 INFO L280 TraceCheckUtils]: 9: Hoare triple {124#true} ~x~0 := 0.0; {124#true} is VALID [2020-07-10 18:35:19,199 INFO L263 TraceCheckUtils]: 10: Hoare triple {124#true} call #t~ret7 := __ieee754_sqrtf(~x~0); {150#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-10 18:35:19,199 INFO L280 TraceCheckUtils]: 11: Hoare triple {150#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {124#true} is VALID [2020-07-10 18:35:19,200 INFO L280 TraceCheckUtils]: 12: Hoare triple {124#true} havoc ~z~0; {124#true} is VALID [2020-07-10 18:35:19,200 INFO L280 TraceCheckUtils]: 13: Hoare triple {124#true} havoc ~r~0; {124#true} is VALID [2020-07-10 18:35:19,200 INFO L280 TraceCheckUtils]: 14: Hoare triple {124#true} havoc ~hx~0; {124#true} is VALID [2020-07-10 18:35:19,201 INFO L280 TraceCheckUtils]: 15: Hoare triple {124#true} havoc ~ix~0; {124#true} is VALID [2020-07-10 18:35:19,201 INFO L280 TraceCheckUtils]: 16: Hoare triple {124#true} havoc ~s~0; {124#true} is VALID [2020-07-10 18:35:19,202 INFO L280 TraceCheckUtils]: 17: Hoare triple {124#true} havoc ~q~0; {124#true} is VALID [2020-07-10 18:35:19,202 INFO L280 TraceCheckUtils]: 18: Hoare triple {124#true} havoc ~m~0; {124#true} is VALID [2020-07-10 18:35:19,202 INFO L280 TraceCheckUtils]: 19: Hoare triple {124#true} havoc ~t~0; {124#true} is VALID [2020-07-10 18:35:19,203 INFO L280 TraceCheckUtils]: 20: Hoare triple {124#true} havoc ~i~0; {124#true} is VALID [2020-07-10 18:35:19,204 INFO L280 TraceCheckUtils]: 21: Hoare triple {124#true} assume !true; {125#false} is VALID [2020-07-10 18:35:19,204 INFO L280 TraceCheckUtils]: 22: Hoare triple {125#false} ~hx~0 := ~bitwiseAnd(~ix~0, 2147483647); {125#false} is VALID [2020-07-10 18:35:19,205 INFO L280 TraceCheckUtils]: 23: Hoare triple {125#false} assume !(~hx~0 % 4294967296 < 2139095040); {125#false} is VALID [2020-07-10 18:35:19,205 INFO L280 TraceCheckUtils]: 24: Hoare triple {125#false} #res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~x, ~x), ~x); {125#false} is VALID [2020-07-10 18:35:19,206 INFO L280 TraceCheckUtils]: 25: Hoare triple {125#false} assume true; {125#false} is VALID [2020-07-10 18:35:19,206 INFO L275 TraceCheckUtils]: 26: Hoare quadruple {125#false} {124#true} #216#return; {125#false} is VALID [2020-07-10 18:35:19,206 INFO L280 TraceCheckUtils]: 27: Hoare triple {125#false} ~res~0 := #t~ret7; {125#false} is VALID [2020-07-10 18:35:19,207 INFO L280 TraceCheckUtils]: 28: Hoare triple {125#false} havoc #t~ret7; {125#false} is VALID [2020-07-10 18:35:19,207 INFO L280 TraceCheckUtils]: 29: Hoare triple {125#false} #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); {125#false} is VALID [2020-07-10 18:35:19,208 INFO L280 TraceCheckUtils]: 30: Hoare triple {125#false} assume !#t~short9; {125#false} is VALID [2020-07-10 18:35:19,208 INFO L280 TraceCheckUtils]: 31: Hoare triple {125#false} assume !#t~short9; {125#false} is VALID [2020-07-10 18:35:19,208 INFO L280 TraceCheckUtils]: 32: Hoare triple {125#false} havoc #t~ret8; {125#false} is VALID [2020-07-10 18:35:19,209 INFO L280 TraceCheckUtils]: 33: Hoare triple {125#false} havoc #t~short9; {125#false} is VALID [2020-07-10 18:35:19,209 INFO L280 TraceCheckUtils]: 34: Hoare triple {125#false} assume !false; {125#false} is VALID [2020-07-10 18:35:19,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 18:35:19,215 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 18:35:19,217 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000147044] [2020-07-10 18:35:19,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 18:35:19,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 18:35:19,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870994047] [2020-07-10 18:35:19,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-10 18:35:19,230 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 18:35:19,233 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 18:35:19,290 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:19,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 18:35:19,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 18:35:19,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 18:35:19,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-10 18:35:19,303 INFO L87 Difference]: Start difference. First operand 121 states. Second operand 4 states. [2020-07-10 18:35:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:20,151 INFO L93 Difference]: Finished difference Result 220 states and 261 transitions. [2020-07-10 18:35:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 18:35:20,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-10 18:35:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 18:35:20,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:20,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2020-07-10 18:35:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 18:35:20,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2020-07-10 18:35:20,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 261 transitions. [2020-07-10 18:35:20,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 261 edges. 261 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:20,514 INFO L225 Difference]: With dead ends: 220 [2020-07-10 18:35:20,514 INFO L226 Difference]: Without dead ends: 113 [2020-07-10 18:35:20,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-10 18:35:20,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-10 18:35:20,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-10 18:35:20,671 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 18:35:20,672 INFO L82 GeneralOperation]: Start isEquivalent. First operand 113 states. Second operand 113 states. [2020-07-10 18:35:20,673 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-10 18:35:20,673 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-10 18:35:20,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:20,688 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2020-07-10 18:35:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2020-07-10 18:35:20,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:20,697 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:20,698 INFO L74 IsIncluded]: Start isIncluded. First operand 113 states. Second operand 113 states. [2020-07-10 18:35:20,698 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 113 states. [2020-07-10 18:35:20,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 18:35:20,712 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2020-07-10 18:35:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2020-07-10 18:35:20,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 18:35:20,716 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 18:35:20,716 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 18:35:20,716 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 18:35:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-10 18:35:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2020-07-10 18:35:20,735 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 35 [2020-07-10 18:35:20,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 18:35:20,736 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2020-07-10 18:35:20,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 18:35:20,736 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 113 states and 124 transitions. [2020-07-10 18:35:20,878 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 18:35:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2020-07-10 18:35:20,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-10 18:35:20,881 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 18:35:20,881 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] [2020-07-10 18:35:20,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 18:35:20,882 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 18:35:20,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 18:35:20,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1569420762, now seen corresponding path program 1 times [2020-07-10 18:35:20,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 18:35:20,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1021368909] [2020-07-10 18:35:20,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 18:35:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 18:35:21,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 18:35:21,021 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:266) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-10 18:35:21,029 INFO L168 Benchmark]: Toolchain (without parser) took 3414.12 ms. Allocated memory was 143.7 MB in the beginning and 251.7 MB in the end (delta: 108.0 MB). Free memory was 101.1 MB in the beginning and 134.6 MB in the end (delta: -33.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:21,030 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-10 18:35:21,031 INFO L168 Benchmark]: CACSL2BoogieTranslator took 468.23 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 177.5 MB in the end (delta: -76.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:21,032 INFO L168 Benchmark]: Boogie Preprocessor took 79.32 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 175.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:21,032 INFO L168 Benchmark]: RCFGBuilder took 668.07 ms. Allocated memory is still 200.3 MB. Free memory was 175.5 MB in the beginning and 128.7 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:21,033 INFO L168 Benchmark]: TraceAbstraction took 2192.97 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 128.7 MB in the beginning and 134.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. [2020-07-10 18:35:21,038 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 0.72 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 468.23 ms. Allocated memory was 143.7 MB in the beginning and 200.3 MB in the end (delta: 56.6 MB). Free memory was 100.9 MB in the beginning and 177.5 MB in the end (delta: -76.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.32 ms. Allocated memory is still 200.3 MB. Free memory was 177.5 MB in the beginning and 175.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 668.07 ms. Allocated memory is still 200.3 MB. Free memory was 175.5 MB in the beginning and 128.7 MB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2192.97 ms. Allocated memory was 200.3 MB in the beginning and 251.7 MB in the end (delta: 51.4 MB). Free memory was 128.7 MB in the beginning and 134.6 MB in the end (delta: -5.9 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...