/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.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 03:19:27,798 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 03:19:27,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 03:19:27,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 03:19:27,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 03:19:27,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 03:19:27,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 03:19:27,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 03:19:27,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 03:19:27,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 03:19:27,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 03:19:27,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 03:19:27,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 03:19:27,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 03:19:27,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 03:19:27,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 03:19:27,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 03:19:27,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 03:19:27,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 03:19:27,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 03:19:27,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 03:19:27,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 03:19:27,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 03:19:27,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 03:19:27,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 03:19:27,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 03:19:27,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 03:19:27,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 03:19:27,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 03:19:27,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 03:19:27,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 03:19:27,925 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 03:19:27,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 03:19:27,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 03:19:27,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 03:19:27,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 03:19:27,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 03:19:27,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 03:19:27,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 03:19:27,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 03:19:27,928 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 03:19:27,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 03:19:27,929 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 03:19:27,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 03:19:27,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 03:19:27,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 03:19:27,930 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 03:19:27,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 03:19:27,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:19:27,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 03:19:27,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 03:19:27,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 03:19:27,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 03:19:27,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 03:19:27,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 03:19:27,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 03:19:27,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 03:19:28,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 03:19:28,261 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 03:19:28,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 03:19:28,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 03:19:28,269 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 03:19:28,269 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-20 03:19:28,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8218354f/3777f9f1e00042a7bd8f7986aff4e53d/FLAGff1d4552a [2020-07-20 03:19:28,843 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 03:19:28,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-20 03:19:28,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8218354f/3777f9f1e00042a7bd8f7986aff4e53d/FLAGff1d4552a [2020-07-20 03:19:29,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8218354f/3777f9f1e00042a7bd8f7986aff4e53d [2020-07-20 03:19:29,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 03:19:29,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 03:19:29,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 03:19:29,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 03:19:29,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 03:19:29,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3795a4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29, skipping insertion in model container [2020-07-20 03:19:29,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 03:19:29,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 03:19:29,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:19:29,486 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 03:19:29,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 03:19:29,666 INFO L208 MainTranslator]: Completed translation [2020-07-20 03:19:29,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29 WrapperNode [2020-07-20 03:19:29,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 03:19:29,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 03:19:29,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 03:19:29,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 03:19:29,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... [2020-07-20 03:19:29,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 03:19:29,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 03:19:29,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 03:19:29,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 03:19:29,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 03:19:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 03:19:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 03:19:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-20 03:19:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-20 03:19:29,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-20 03:19:29,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 03:19:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 03:19:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-20 03:19:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-20 03:19:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-20 03:19:29,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 03:19:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 03:19:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 03:19:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 03:19:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 03:19:29,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 03:19:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-20 03:19:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 03:19:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 03:19:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-20 03:19:29,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 03:19:30,405 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 03:19:30,405 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-20 03:19:30,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:19:30 BoogieIcfgContainer [2020-07-20 03:19:30,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 03:19:30,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 03:19:30,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 03:19:30,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 03:19:30,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 03:19:29" (1/3) ... [2020-07-20 03:19:30,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4f3835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:19:30, skipping insertion in model container [2020-07-20 03:19:30,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 03:19:29" (2/3) ... [2020-07-20 03:19:30,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4f3835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 03:19:30, skipping insertion in model container [2020-07-20 03:19:30,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 03:19:30" (3/3) ... [2020-07-20 03:19:30,419 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-20 03:19:30,429 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 03:19:30,437 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 03:19:30,451 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 03:19:30,475 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 03:19:30,476 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 03:19:30,476 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 03:19:30,476 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 03:19:30,476 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 03:19:30,477 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 03:19:30,477 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 03:19:30,477 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 03:19:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-20 03:19:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 03:19:30,506 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:19:30,507 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] [2020-07-20 03:19:30,507 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:19:30,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:19:30,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-07-20 03:19:30,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:19:30,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338443135] [2020-07-20 03:19:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d5db5d0 [2020-07-20 03:19:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:19:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:19:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:19:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 03:19:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 03:19:30,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338443135] [2020-07-20 03:19:30,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 03:19:30,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 03:19:30,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131253232] [2020-07-20 03:19:30,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 03:19:30,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 03:19:30,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 03:19:30,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 03:19:30,837 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-20 03:19:31,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 03:19:31,163 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-20 03:19:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 03:19:31,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-20 03:19:31,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 03:19:31,177 INFO L225 Difference]: With dead ends: 138 [2020-07-20 03:19:31,177 INFO L226 Difference]: Without dead ends: 68 [2020-07-20 03:19:31,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 03:19:31,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-20 03:19:31,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-20 03:19:31,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-20 03:19:31,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-20 03:19:31,249 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-20 03:19:31,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 03:19:31,250 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-20 03:19:31,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 03:19:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-20 03:19:31,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 03:19:31,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 03:19:31,252 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] [2020-07-20 03:19:31,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 03:19:31,253 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 03:19:31,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 03:19:31,253 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-07-20 03:19:31,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 03:19:31,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488508471] [2020-07-20 03:19:31,254 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d5db5d0 [2020-07-20 03:19:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 03:19:31,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 03:19:31,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 03:19:31,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 03:19:31,596 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 03:19:31,596 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 03:19:31,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 03:19:31,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 03:19:31 BoogieIcfgContainer [2020-07-20 03:19:31,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 03:19:31,638 INFO L168 Benchmark]: Toolchain (without parser) took 2446.22 ms. Allocated memory was 144.2 MB in the beginning and 232.8 MB in the end (delta: 88.6 MB). Free memory was 100.2 MB in the beginning and 180.5 MB in the end (delta: -80.4 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB. [2020-07-20 03:19:31,639 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 03:19:31,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.03 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 177.1 MB in the end (delta: -77.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2020-07-20 03:19:31,641 INFO L168 Benchmark]: Boogie Preprocessor took 75.13 ms. Allocated memory is still 201.9 MB. Free memory was 177.1 MB in the beginning and 174.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-07-20 03:19:31,642 INFO L168 Benchmark]: RCFGBuilder took 667.34 ms. Allocated memory is still 201.9 MB. Free memory was 174.4 MB in the beginning and 138.2 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-07-20 03:19:31,643 INFO L168 Benchmark]: TraceAbstraction took 1224.27 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 137.5 MB in the beginning and 180.5 MB in the end (delta: -43.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 03:19:31,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 119.0 MB in the beginning and 118.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 473.03 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 99.7 MB in the beginning and 177.1 MB in the end (delta: -77.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.13 ms. Allocated memory is still 201.9 MB. Free memory was 177.1 MB in the beginning and 174.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 667.34 ms. Allocated memory is still 201.9 MB. Free memory was 174.4 MB in the beginning and 138.2 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1224.27 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 137.5 MB in the beginning and 180.5 MB in the end (delta: -43.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=9223372034706243602, \old(Zero_fmod)=9223372034706243590, \old(Zero_fmod)=9223372034706243599, one_fmod=1, Zero_fmod={3:0}] [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) VAL [\old(x)=9223372034706243588, one_fmod=1, Zero_fmod={3:0}] [L164] __int32_t hx; VAL [\old(x)=9223372034706243588, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=9223372034706243588, \result=6, hx=-1, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=6, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, Zero_fmod={3:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [\old(x)=9223372034706243588, \old(y)=9223372034706243603, hx=2146435072, lx=9223372034706243600, ly=9223372034706243587, one_fmod=1, sx=-3, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L185] RET, EXPR fmod_double(x, y) VAL [fmod_double(x, y)=9223372034706243589, one_fmod=1, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] [L189] __VERIFIER_error() VAL [one_fmod=1, res=9223372034706243589, x=9223372034706243588, y=9223372034706243603, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 SDtfs, 6 SDslu, 87 SDs, 0 SdLazy, 102 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...