/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 04:39:32,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 04:39:32,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 04:39:32,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 04:39:32,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 04:39:32,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 04:39:32,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 04:39:32,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 04:39:32,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 04:39:32,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 04:39:32,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 04:39:32,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 04:39:32,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 04:39:32,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 04:39:32,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 04:39:32,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 04:39:32,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 04:39:32,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 04:39:32,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 04:39:32,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 04:39:32,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 04:39:32,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 04:39:32,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 04:39:32,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 04:39:32,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 04:39:32,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 04:39:32,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 04:39:32,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 04:39:32,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 04:39:32,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-07-18 04:39:32,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 04:39:32,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 04:39:32,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 04:39:32,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 04:39:32,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 04:39:32,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 04:39:32,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 04:39:32,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 04:39:32,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 04:39:32,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 04:39:32,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 04:39:32,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 04:39:32,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 04:39:32,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 04:39:32,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 04:39:32,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 04:39:32,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 04:39:32,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 04:39:32,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 04:39:32,797 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 04:39:32,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 04:39:32,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 04:39:32,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:32,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 04:39:32,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 04:39:32,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 04:39:32,799 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-18 04:39:33,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 04:39:33,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 04:39:33,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 04:39:33,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 04:39:33,089 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 04:39:33,090 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1092c.c [2020-07-18 04:39:33,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e06fe6f0e/1c29f48de8794cd7a4f1f5d5a0c1779a/FLAG340428b92 [2020-07-18 04:39:33,608 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 04:39:33,610 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1092c.c [2020-07-18 04:39:33,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e06fe6f0e/1c29f48de8794cd7a4f1f5d5a0c1779a/FLAG340428b92 [2020-07-18 04:39:33,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e06fe6f0e/1c29f48de8794cd7a4f1f5d5a0c1779a [2020-07-18 04:39:33,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 04:39:33,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 04:39:33,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:33,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 04:39:33,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 04:39:33,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:33" (1/1) ... [2020-07-18 04:39:33,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d6acd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:33, skipping insertion in model container [2020-07-18 04:39:33,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 04:39:33" (1/1) ... [2020-07-18 04:39:34,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 04:39:34,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 04:39:34,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:34,342 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 04:39:34,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 04:39:34,488 INFO L208 MainTranslator]: Completed translation [2020-07-18 04:39:34,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34 WrapperNode [2020-07-18 04:39:34,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 04:39:34,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 04:39:34,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 04:39:34,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 04:39:34,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... [2020-07-18 04:39:34,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 04:39:34,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 04:39:34,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 04:39:34,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 04:39:34,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 04:39:34,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 04:39:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 04:39:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2020-07-18 04:39:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2020-07-18 04:39:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 04:39:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 04:39:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2020-07-18 04:39:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 04:39:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 04:39:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 04:39:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 04:39:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 04:39:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 04:39:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2020-07-18 04:39:34,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 04:39:34,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 04:39:34,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 04:39:35,255 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 04:39:35,256 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-18 04:39:35,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:35 BoogieIcfgContainer [2020-07-18 04:39:35,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 04:39:35,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 04:39:35,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 04:39:35,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 04:39:35,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 04:39:33" (1/3) ... [2020-07-18 04:39:35,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e826cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:35, skipping insertion in model container [2020-07-18 04:39:35,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 04:39:34" (2/3) ... [2020-07-18 04:39:35,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e826cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 04:39:35, skipping insertion in model container [2020-07-18 04:39:35,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 04:39:35" (3/3) ... [2020-07-18 04:39:35,271 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092c.c [2020-07-18 04:39:35,283 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 04:39:35,292 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 04:39:35,308 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 04:39:35,333 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 04:39:35,333 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 04:39:35,333 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-18 04:39:35,334 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 04:39:35,334 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 04:39:35,334 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 04:39:35,334 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 04:39:35,335 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 04:39:35,354 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-07-18 04:39:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-07-18 04:39:35,368 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:35,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 04:39:35,370 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:35,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:35,378 INFO L82 PathProgramCache]: Analyzing trace with hash -111453840, now seen corresponding path program 1 times [2020-07-18 04:39:35,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:35,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993803517] [2020-07-18 04:39:35,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:35,624 INFO L280 TraceCheckUtils]: 0: Hoare triple {119#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} #NULL.base, #NULL.offset := 0, 0; {91#true} is VALID [2020-07-18 04:39:35,624 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} #valid := #valid[0 := 0]; {91#true} is VALID [2020-07-18 04:39:35,625 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} assume 0 < #StackHeapBarrier; {91#true} is VALID [2020-07-18 04:39:35,626 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} ~huge_ceil~0 := 1.0E30; {91#true} is VALID [2020-07-18 04:39:35,627 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} assume true; {91#true} is VALID [2020-07-18 04:39:35,627 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {91#true} {91#true} #154#return; {91#true} is VALID [2020-07-18 04:39:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:35,666 INFO L280 TraceCheckUtils]: 0: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-18 04:39:35,667 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} havoc ~i0~0; {91#true} is VALID [2020-07-18 04:39:35,667 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} havoc ~j0~0; {91#true} is VALID [2020-07-18 04:39:35,668 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} havoc ~i~0; {91#true} is VALID [2020-07-18 04:39:35,668 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} havoc ~ix~0; {91#true} is VALID [2020-07-18 04:39:35,669 INFO L280 TraceCheckUtils]: 5: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-18 04:39:35,669 INFO L280 TraceCheckUtils]: 6: Hoare triple {92#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {92#false} is VALID [2020-07-18 04:39:35,670 INFO L280 TraceCheckUtils]: 7: Hoare triple {92#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {92#false} is VALID [2020-07-18 04:39:35,670 INFO L280 TraceCheckUtils]: 8: Hoare triple {92#false} assume !(~j0~0 < 23); {92#false} is VALID [2020-07-18 04:39:35,671 INFO L280 TraceCheckUtils]: 9: Hoare triple {92#false} assume !(~ix~0 % 4294967296 < 2139095040); {92#false} is VALID [2020-07-18 04:39:35,671 INFO L280 TraceCheckUtils]: 10: Hoare triple {92#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {92#false} is VALID [2020-07-18 04:39:35,671 INFO L280 TraceCheckUtils]: 11: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-18 04:39:35,672 INFO L275 TraceCheckUtils]: 12: Hoare quadruple {92#false} {91#true} #158#return; {92#false} is VALID [2020-07-18 04:39:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 04:39:35,682 INFO L280 TraceCheckUtils]: 0: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-18 04:39:35,682 INFO L280 TraceCheckUtils]: 1: Hoare triple {91#true} havoc ~ix~1; {91#true} is VALID [2020-07-18 04:39:35,683 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-18 04:39:35,684 INFO L280 TraceCheckUtils]: 3: Hoare triple {92#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {92#false} is VALID [2020-07-18 04:39:35,684 INFO L280 TraceCheckUtils]: 4: Hoare triple {92#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {92#false} is VALID [2020-07-18 04:39:35,684 INFO L280 TraceCheckUtils]: 5: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-18 04:39:35,685 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {92#false} {92#false} #160#return; {92#false} is VALID [2020-07-18 04:39:35,687 INFO L263 TraceCheckUtils]: 0: Hoare triple {91#true} call ULTIMATE.init(); {119#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} is VALID [2020-07-18 04:39:35,687 INFO L280 TraceCheckUtils]: 1: Hoare triple {119#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~huge_ceil~0 |old(~huge_ceil~0)|))} #NULL.base, #NULL.offset := 0, 0; {91#true} is VALID [2020-07-18 04:39:35,688 INFO L280 TraceCheckUtils]: 2: Hoare triple {91#true} #valid := #valid[0 := 0]; {91#true} is VALID [2020-07-18 04:39:35,688 INFO L280 TraceCheckUtils]: 3: Hoare triple {91#true} assume 0 < #StackHeapBarrier; {91#true} is VALID [2020-07-18 04:39:35,688 INFO L280 TraceCheckUtils]: 4: Hoare triple {91#true} ~huge_ceil~0 := 1.0E30; {91#true} is VALID [2020-07-18 04:39:35,689 INFO L280 TraceCheckUtils]: 5: Hoare triple {91#true} assume true; {91#true} is VALID [2020-07-18 04:39:35,689 INFO L275 TraceCheckUtils]: 6: Hoare quadruple {91#true} {91#true} #154#return; {91#true} is VALID [2020-07-18 04:39:35,689 INFO L263 TraceCheckUtils]: 7: Hoare triple {91#true} call #t~ret8 := main(); {91#true} is VALID [2020-07-18 04:39:35,690 INFO L280 TraceCheckUtils]: 8: Hoare triple {91#true} ~x~0 := ~someBinaryArithmeticFLOAToperation(1.0, 0.0); {91#true} is VALID [2020-07-18 04:39:35,692 INFO L263 TraceCheckUtils]: 9: Hoare triple {91#true} call #t~ret6 := ceil_float(~x~0); {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:35,692 INFO L280 TraceCheckUtils]: 10: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-18 04:39:35,693 INFO L280 TraceCheckUtils]: 11: Hoare triple {91#true} havoc ~i0~0; {91#true} is VALID [2020-07-18 04:39:35,693 INFO L280 TraceCheckUtils]: 12: Hoare triple {91#true} havoc ~j0~0; {91#true} is VALID [2020-07-18 04:39:35,693 INFO L280 TraceCheckUtils]: 13: Hoare triple {91#true} havoc ~i~0; {91#true} is VALID [2020-07-18 04:39:35,694 INFO L280 TraceCheckUtils]: 14: Hoare triple {91#true} havoc ~ix~0; {91#true} is VALID [2020-07-18 04:39:35,695 INFO L280 TraceCheckUtils]: 15: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-18 04:39:35,695 INFO L280 TraceCheckUtils]: 16: Hoare triple {92#false} ~ix~0 := ~bitwiseAnd(~i0~0, 2147483647); {92#false} is VALID [2020-07-18 04:39:35,695 INFO L280 TraceCheckUtils]: 17: Hoare triple {92#false} ~j0~0 := (if (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {92#false} is VALID [2020-07-18 04:39:35,696 INFO L280 TraceCheckUtils]: 18: Hoare triple {92#false} assume !(~j0~0 < 23); {92#false} is VALID [2020-07-18 04:39:35,696 INFO L280 TraceCheckUtils]: 19: Hoare triple {92#false} assume !(~ix~0 % 4294967296 < 2139095040); {92#false} is VALID [2020-07-18 04:39:35,696 INFO L280 TraceCheckUtils]: 20: Hoare triple {92#false} #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); {92#false} is VALID [2020-07-18 04:39:35,697 INFO L280 TraceCheckUtils]: 21: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-18 04:39:35,697 INFO L275 TraceCheckUtils]: 22: Hoare quadruple {92#false} {91#true} #158#return; {92#false} is VALID [2020-07-18 04:39:35,697 INFO L280 TraceCheckUtils]: 23: Hoare triple {92#false} ~res~0 := #t~ret6; {92#false} is VALID [2020-07-18 04:39:35,698 INFO L280 TraceCheckUtils]: 24: Hoare triple {92#false} havoc #t~ret6; {92#false} is VALID [2020-07-18 04:39:35,698 INFO L263 TraceCheckUtils]: 25: Hoare triple {92#false} call #t~ret7 := isinf_float(~res~0); {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} is VALID [2020-07-18 04:39:35,698 INFO L280 TraceCheckUtils]: 26: Hoare triple {120#(and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|))} ~x := #in~x; {91#true} is VALID [2020-07-18 04:39:35,698 INFO L280 TraceCheckUtils]: 27: Hoare triple {91#true} havoc ~ix~1; {91#true} is VALID [2020-07-18 04:39:35,699 INFO L280 TraceCheckUtils]: 28: Hoare triple {91#true} assume !true; {92#false} is VALID [2020-07-18 04:39:35,700 INFO L280 TraceCheckUtils]: 29: Hoare triple {92#false} ~ix~1 := ~bitwiseAnd(~ix~1, 2147483647); {92#false} is VALID [2020-07-18 04:39:35,700 INFO L280 TraceCheckUtils]: 30: Hoare triple {92#false} #res := (if 2139095040 == ~ix~1 then 1 else 0); {92#false} is VALID [2020-07-18 04:39:35,701 INFO L280 TraceCheckUtils]: 31: Hoare triple {92#false} assume true; {92#false} is VALID [2020-07-18 04:39:35,701 INFO L275 TraceCheckUtils]: 32: Hoare quadruple {92#false} {92#false} #160#return; {92#false} is VALID [2020-07-18 04:39:35,701 INFO L280 TraceCheckUtils]: 33: Hoare triple {92#false} assume -2147483648 <= #t~ret7 && #t~ret7 <= 2147483647; {92#false} is VALID [2020-07-18 04:39:35,702 INFO L280 TraceCheckUtils]: 34: Hoare triple {92#false} assume 0 == #t~ret7; {92#false} is VALID [2020-07-18 04:39:35,702 INFO L280 TraceCheckUtils]: 35: Hoare triple {92#false} havoc #t~ret7; {92#false} is VALID [2020-07-18 04:39:35,702 INFO L280 TraceCheckUtils]: 36: Hoare triple {92#false} assume !false; {92#false} is VALID [2020-07-18 04:39:35,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 04:39:35,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993803517] [2020-07-18 04:39:35,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 04:39:35,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-18 04:39:35,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357076812] [2020-07-18 04:39:35,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-18 04:39:35,724 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 04:39:35,728 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-18 04:39:35,790 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:35,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-18 04:39:35,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 04:39:35,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-18 04:39:35,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-18 04:39:35,804 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 4 states. [2020-07-18 04:39:36,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:36,436 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2020-07-18 04:39:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-18 04:39:36,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-07-18 04:39:36,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 04:39:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:36,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2020-07-18 04:39:36,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-18 04:39:36,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2020-07-18 04:39:36,460 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 191 transitions. [2020-07-18 04:39:36,694 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 191 edges. 191 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:36,711 INFO L225 Difference]: With dead ends: 160 [2020-07-18 04:39:36,711 INFO L226 Difference]: Without dead ends: 81 [2020-07-18 04:39:36,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-18 04:39:36,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-18 04:39:36,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2020-07-18 04:39:36,840 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 04:39:36,840 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 81 states. [2020-07-18 04:39:36,841 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-18 04:39:36,841 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-18 04:39:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:36,849 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-18 04:39:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-18 04:39:36,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:36,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:36,850 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 81 states. [2020-07-18 04:39:36,851 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 81 states. [2020-07-18 04:39:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 04:39:36,858 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2020-07-18 04:39:36,858 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-18 04:39:36,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 04:39:36,859 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 04:39:36,859 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 04:39:36,860 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 04:39:36,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-18 04:39:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2020-07-18 04:39:36,866 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 37 [2020-07-18 04:39:36,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 04:39:36,866 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2020-07-18 04:39:36,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-18 04:39:36,867 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 89 transitions. [2020-07-18 04:39:36,972 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 04:39:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2020-07-18 04:39:36,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-18 04:39:36,974 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 04:39:36,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 04:39:36,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 04:39:36,975 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 04:39:36,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 04:39:36,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1808692589, now seen corresponding path program 1 times [2020-07-18 04:39:36,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 04:39:36,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201381643] [2020-07-18 04:39:36,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 04:39:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 04:39:37,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 04:39:37,246 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.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-18 04:39:37,253 INFO L168 Benchmark]: Toolchain (without parser) took 3269.72 ms. Allocated memory was 138.9 MB in the beginning and 246.4 MB in the end (delta: 107.5 MB). Free memory was 103.6 MB in the beginning and 184.5 MB in the end (delta: -80.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:37,254 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-18 04:39:37,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 503.50 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.2 MB in the beginning and 181.1 MB in the end (delta: -77.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:37,256 INFO L168 Benchmark]: Boogie Preprocessor took 95.61 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 178.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:37,257 INFO L168 Benchmark]: RCFGBuilder took 676.59 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 140.7 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2020-07-18 04:39:37,258 INFO L168 Benchmark]: TraceAbstraction took 1986.90 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 140.0 MB in the beginning and 184.5 MB in the end (delta: -44.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-18 04:39:37,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.4 MB in the beginning and 122.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 503.50 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.2 MB in the beginning and 181.1 MB in the end (delta: -77.9 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.61 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 178.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 676.59 ms. Allocated memory is still 202.9 MB. Free memory was 178.7 MB in the beginning and 140.7 MB in the end (delta: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1986.90 ms. Allocated memory was 202.9 MB in the beginning and 246.4 MB in the end (delta: 43.5 MB). Free memory was 140.0 MB in the beginning and 184.5 MB in the end (delta: -44.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...