/usr/bin/java -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/double_req_bl_1252a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 21:49:59,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:49:59,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:49:59,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:49:59,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:49:59,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:49:59,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:49:59,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:49:59,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:49:59,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:49:59,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:49:59,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:49:59,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:49:59,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:49:59,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:49:59,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:49:59,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:49:59,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:49:59,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:49:59,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:49:59,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:49:59,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:49:59,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:49:59,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:49:59,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:49:59,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:49:59,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:49:59,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:49:59,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:49:59,613 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:49:59,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:49:59,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:49:59,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:49:59,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:49:59,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:49:59,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:49:59,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:49:59,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:49:59,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:49:59,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:49:59,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:49:59,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:49:59,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:49:59,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:49:59,617 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:49:59,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:49:59,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:49:59,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:49:59,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:49:59,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:49:59,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:49:59,618 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 [2020-08-22 21:49:59,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:49:59,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:49:59,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:49:59,918 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:49:59,919 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:49:59,919 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1252a.c [2020-08-22 21:49:59,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071505944/a04e15655f7b4baf932d09374a8499c5/FLAG5e285a127 [2020-08-22 21:50:00,461 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:50:00,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1252a.c [2020-08-22 21:50:00,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071505944/a04e15655f7b4baf932d09374a8499c5/FLAG5e285a127 [2020-08-22 21:50:00,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071505944/a04e15655f7b4baf932d09374a8499c5 [2020-08-22 21:50:00,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:50:00,842 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:50:00,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:00,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:50:00,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:50:00,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:00" (1/1) ... [2020-08-22 21:50:00,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:00, skipping insertion in model container [2020-08-22 21:50:00,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:50:00" (1/1) ... [2020-08-22 21:50:00,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:50:00,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:50:01,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:01,075 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:50:01,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:50:01,241 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:50:01,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01 WrapperNode [2020-08-22 21:50:01,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:50:01,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:50:01,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:50:01,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:50:01,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (1/1) ... [2020-08-22 21:50:01,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:50:01,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:50:01,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:50:01,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:50:01,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (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 [2020-08-22 21:50:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:50:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:50:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-08-22 21:50:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_double [2020-08-22 21:50:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-08-22 21:50:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:50:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:50:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-08-22 21:50:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-08-22 21:50:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:50:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:50:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:50:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:50:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_double [2020-08-22 21:50:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-08-22 21:50:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:50:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:50:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:50:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:50:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:50:01,719 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:50:01,720 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-08-22 21:50:01,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:01 BoogieIcfgContainer [2020-08-22 21:50:01,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:50:01,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:50:01,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:50:01,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:50:01,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:50:00" (1/3) ... [2020-08-22 21:50:01,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43256edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:01, skipping insertion in model container [2020-08-22 21:50:01,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:50:01" (2/3) ... [2020-08-22 21:50:01,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43256edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:50:01, skipping insertion in model container [2020-08-22 21:50:01,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:50:01" (3/3) ... [2020-08-22 21:50:01,732 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-08-22 21:50:01,744 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:50:01,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:50:01,770 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:50:01,791 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:50:01,791 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:50:01,791 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:50:01,792 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:50:01,792 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:50:01,792 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:50:01,792 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:50:01,792 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:50:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2020-08-22 21:50:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-08-22 21:50:01,822 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:01,823 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] [2020-08-22 21:50:01,824 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:01,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1930633076, now seen corresponding path program 1 times [2020-08-22 21:50:01,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:01,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445482983] [2020-08-22 21:50:01,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:50:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:50:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:02,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445482983] [2020-08-22 21:50:02,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:02,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 21:50:02,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81281906] [2020-08-22 21:50:02,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 21:50:02,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:02,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 21:50:02,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 21:50:02,119 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 4 states. [2020-08-22 21:50:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:02,405 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2020-08-22 21:50:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 21:50:02,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-08-22 21:50:02,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:02,418 INFO L225 Difference]: With dead ends: 176 [2020-08-22 21:50:02,418 INFO L226 Difference]: Without dead ends: 87 [2020-08-22 21:50:02,423 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 [2020-08-22 21:50:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-08-22 21:50:02,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-08-22 21:50:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-22 21:50:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2020-08-22 21:50:02,483 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 35 [2020-08-22 21:50:02,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:02,483 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2020-08-22 21:50:02,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 21:50:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2020-08-22 21:50:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-08-22 21:50:02,487 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:02,487 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] [2020-08-22 21:50:02,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:50:02,488 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:02,489 INFO L82 PathProgramCache]: Analyzing trace with hash -330335414, now seen corresponding path program 1 times [2020-08-22 21:50:02,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:02,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972715244] [2020-08-22 21:50:02,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:50:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:50:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:02,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972715244] [2020-08-22 21:50:02,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:02,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:50:02,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801450714] [2020-08-22 21:50:02,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:50:02,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:02,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:50:02,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:50:02,761 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand 6 states. [2020-08-22 21:50:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:02,997 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2020-08-22 21:50:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:50:02,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-08-22 21:50:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:03,001 INFO L225 Difference]: With dead ends: 123 [2020-08-22 21:50:03,002 INFO L226 Difference]: Without dead ends: 92 [2020-08-22 21:50:03,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:50:03,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-08-22 21:50:03,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2020-08-22 21:50:03,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-22 21:50:03,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-08-22 21:50:03,020 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 49 [2020-08-22 21:50:03,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:03,021 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-08-22 21:50:03,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:50:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-08-22 21:50:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 21:50:03,023 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:03,023 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] [2020-08-22 21:50:03,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 21:50:03,023 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:03,024 INFO L82 PathProgramCache]: Analyzing trace with hash -389367439, now seen corresponding path program 1 times [2020-08-22 21:50:03,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:03,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257117385] [2020-08-22 21:50:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 21:50:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:03,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 21:50:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:03,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 21:50:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 21:50:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 21:50:03,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257117385] [2020-08-22 21:50:03,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 21:50:03,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 21:50:03,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165705446] [2020-08-22 21:50:03,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 21:50:03,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 21:50:03,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 21:50:03,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-22 21:50:03,302 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 6 states. [2020-08-22 21:50:03,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 21:50:03,556 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-08-22 21:50:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 21:50:03,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-08-22 21:50:03,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 21:50:03,559 INFO L225 Difference]: With dead ends: 127 [2020-08-22 21:50:03,560 INFO L226 Difference]: Without dead ends: 96 [2020-08-22 21:50:03,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 21:50:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-08-22 21:50:03,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2020-08-22 21:50:03,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-08-22 21:50:03,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-08-22 21:50:03,587 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 52 [2020-08-22 21:50:03,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 21:50:03,588 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-08-22 21:50:03,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 21:50:03,594 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-08-22 21:50:03,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 21:50:03,596 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:50:03,596 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] [2020-08-22 21:50:03,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 21:50:03,596 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:50:03,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:50:03,601 INFO L82 PathProgramCache]: Analyzing trace with hash 323107249, now seen corresponding path program 1 times [2020-08-22 21:50:03,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:50:03,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766703990] [2020-08-22 21:50:03,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:50:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:50:03,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:50:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:50:03,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:50:03,716 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:50:03,717 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:50:03,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 21:50:03,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:50:03 BoogieIcfgContainer [2020-08-22 21:50:03,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:50:03,788 INFO L168 Benchmark]: Toolchain (without parser) took 2944.16 ms. Allocated memory was 138.9 MB in the beginning and 235.4 MB in the end (delta: 96.5 MB). Free memory was 103.3 MB in the beginning and 108.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 91.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:03,790 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 21:50:03,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.41 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 180.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:03,794 INFO L168 Benchmark]: Boogie Preprocessor took 48.56 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 178.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:03,795 INFO L168 Benchmark]: RCFGBuilder took 433.00 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 154.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:03,802 INFO L168 Benchmark]: TraceAbstraction took 2058.34 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 153.5 MB in the beginning and 108.3 MB in the end (delta: 45.2 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:50:03,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 399.41 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 180.7 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.56 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 178.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 433.00 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 154.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2058.34 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 153.5 MB in the beginning and 108.3 MB in the end (delta: 45.2 MB). Peak memory consumption was 78.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 85]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 79. Possible FailurePath: [L79] double x = -0.0; [L80] double y = 0.0; VAL [y=0] [L81] CALL, EXPR fmax_double(x, y) VAL [\old(x)=4294967300, \old(y)=0] [L52] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4294967300] [L24] __uint32_t msw, lsw; VAL [\old(x)=4294967300, x=4294967300] [L27] ieee_double_shape_type ew_u; VAL [\old(x)=4294967300, ew_u={2:0}, x=4294967300] [L28] ew_u.value = (x) VAL [\old(x)=4294967300, ew_u={2:0}, x=4294967300] [L29] EXPR ew_u.parts.msw VAL [\old(x)=4294967300, ew_u={2:0}, ew_u.parts.msw=4293918721, x=4294967300] [L29] (msw) = ew_u.parts.msw VAL [(msw) = ew_u.parts.msw=4294967303, \old(x)=4294967300, ew_u={2:0}, ew_u.parts.msw=4293918721, msw=4293918721, x=4294967300] [L30] EXPR ew_u.parts.lsw VAL [\old(x)=4294967300, ew_u={2:0}, ew_u.parts.lsw=4294967297, msw=4293918721, x=4294967300] [L30] (lsw) = ew_u.parts.lsw VAL [\old(x)=4294967300, ew_u={2:0}, ew_u.parts.lsw=4294967297, lsw=4294967297, msw=4293918721, x=4294967300] [L33-L34] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4294967300, lsw=4294967297, msw=4293918721, x=4294967300] [L36-L37] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4294967300, lsw=4294967297, msw=4293918721, x=4294967300] [L39-L40] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4294967300, lsw=4294967297, msw=4293918721, x=4294967300] [L43-L44] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) VAL [\old(x)=4294967300, lsw=4294967297, msw=4293918721, x=4294967300] [L47] return 0; VAL [\old(x)=4294967300, \result=0, lsw=4294967297, msw=4293918721, x=4294967300] [L52] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4294967300, \old(y)=0, __fpclassify_double(x)=0, x=4294967300, y=0] [L52] COND TRUE __fpclassify_double(x) == 0 VAL [\old(x)=4294967300, \old(y)=0, __fpclassify_double(x)=0, x=4294967300, y=0] [L53] return y; VAL [\old(x)=4294967300, \old(y)=0, \result=0, x=4294967300, y=0] [L81] RET, EXPR fmax_double(x, y) VAL [fmax_double(x, y)=0, x=4294967300, y=0] [L81] double res = fmax_double(x, y); VAL [fmax_double(x, y)=0, res=0, x=4294967300, y=0] [L84] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=4294967300, y=0] [L84] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=4294967300, y=0] [L85] __VERIFIER_error() VAL [res=0, x=4294967300, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 59 SDslu, 523 SDs, 0 SdLazy, 377 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 11242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...