/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 NUM_FUNCTIONS --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 [2020-07-19 23:01:30,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:01:30,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:01:30,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:01:30,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:01:30,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:01:30,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:01:30,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:01:30,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:01:30,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:01:30,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:01:30,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:01:30,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:01:30,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:01:30,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:01:30,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:01:30,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:01:30,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:01:30,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:01:30,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:01:30,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:01:30,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:01:30,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:01:30,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:01:30,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:01:30,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:01:30,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:01:30,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:01:30,481 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 [2020-07-19 23:01:30,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:01:30,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:01:30,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:01:30,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:01:30,521 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:01:30,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:01:30,522 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:01:30,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:01:30,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:01:30,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:01:30,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:01:30,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:01:30,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:01:30,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:01:30,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:01:30,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:01:30,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:01:30,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:01:30,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:01:30,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:01:30,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:01:30,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:01:30,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:01:30,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:01:30,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:01:30,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:01:30,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:01:30,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:01:30,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:01:30,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 [2020-07-19 23:01:30,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:01:30,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:01:30,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:01:30,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:01:30,895 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:01:30,896 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-19 23:01:30,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a54666a/c178ccf6362740eaaf0c5dbc24e2149b/FLAGd1fa10996 [2020-07-19 23:01:31,489 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:01:31,491 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-19 23:01:31,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a54666a/c178ccf6362740eaaf0c5dbc24e2149b/FLAGd1fa10996 [2020-07-19 23:01:31,797 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a54666a/c178ccf6362740eaaf0c5dbc24e2149b [2020-07-19 23:01:31,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:01:31,808 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:01:31,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:01:31,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:01:31,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:01:31,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:01:31" (1/1) ... [2020-07-19 23:01:31,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0d40c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:31, skipping insertion in model container [2020-07-19 23:01:31,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:01:31" (1/1) ... [2020-07-19 23:01:31,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:01:31,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:01:32,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:01:32,094 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:01:32,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:01:32,293 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:01:32,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32 WrapperNode [2020-07-19 23:01:32,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:01:32,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:01:32,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:01:32,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:01:32,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (1/1) ... [2020-07-19 23:01:32,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:01:32,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:01:32,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:01:32,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:01:32,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (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 [2020-07-19 23:01:32,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:01:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:01:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-19 23:01:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-19 23:01:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-19 23:01:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:01:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:01:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-19 23:01:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-19 23:01:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-19 23:01:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 23:01:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-19 23:01:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 23:01:32,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-19 23:01:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:01:33,027 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:01:33,028 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-19 23:01:33,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:01:33 BoogieIcfgContainer [2020-07-19 23:01:33,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:01:33,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:01:33,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:01:33,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:01:33,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:01:31" (1/3) ... [2020-07-19 23:01:33,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a01d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:01:33, skipping insertion in model container [2020-07-19 23:01:33,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:01:32" (2/3) ... [2020-07-19 23:01:33,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a01d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:01:33, skipping insertion in model container [2020-07-19 23:01:33,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:01:33" (3/3) ... [2020-07-19 23:01:33,044 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-19 23:01:33,055 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:01:33,063 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:01:33,076 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:01:33,098 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:01:33,098 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:01:33,099 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:01:33,099 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:01:33,099 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:01:33,099 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:01:33,099 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:01:33,099 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:01:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-19 23:01:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-19 23:01:33,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:01:33,125 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] [2020-07-19 23:01:33,126 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:01:33,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:01:33,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-07-19 23:01:33,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:01:33,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064845971] [2020-07-19 23:01:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@179cdf81 [2020-07-19 23:01:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:01:33,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:01:33,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064845971] [2020-07-19 23:01:33,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:01:33,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:01:33,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940100888] [2020-07-19 23:01:33,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 23:01:33,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:01:33,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 23:01:33,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 23:01:33,496 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-19 23:01:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:01:33,872 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-19 23:01:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:01:33,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-19 23:01:33,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:01:33,904 INFO L225 Difference]: With dead ends: 138 [2020-07-19 23:01:33,904 INFO L226 Difference]: Without dead ends: 68 [2020-07-19 23:01:33,908 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 [2020-07-19 23:01:33,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-19 23:01:33,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-19 23:01:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-19 23:01:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-19 23:01:33,952 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-19 23:01:33,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:01:33,953 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-19 23:01:33,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 23:01:33,953 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-19 23:01:33,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-19 23:01:33,955 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:01:33,955 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] [2020-07-19 23:01:33,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:01:33,956 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:01:33,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:01:33,956 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-07-19 23:01:33,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:01:33,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508366559] [2020-07-19 23:01:33,957 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@179cdf81 [2020-07-19 23:01:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:01:34,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:01:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 23:01:34,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 23:01:34,324 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 23:01:34,324 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 23:01:34,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:01:34,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:01:34 BoogieIcfgContainer [2020-07-19 23:01:34,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:01:34,370 INFO L168 Benchmark]: Toolchain (without parser) took 2562.13 ms. Allocated memory was 137.9 MB in the beginning and 232.8 MB in the end (delta: 94.9 MB). Free memory was 101.9 MB in the beginning and 179.7 MB in the end (delta: -77.8 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:01:34,371 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 23:01:34,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.95 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 176.3 MB in the end (delta: -74.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-19 23:01:34,373 INFO L168 Benchmark]: Boogie Preprocessor took 66.13 ms. Allocated memory is still 200.8 MB. Free memory was 176.3 MB in the beginning and 173.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:01:34,374 INFO L168 Benchmark]: RCFGBuilder took 672.47 ms. Allocated memory is still 200.8 MB. Free memory was 173.3 MB in the beginning and 137.2 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-07-19 23:01:34,375 INFO L168 Benchmark]: TraceAbstraction took 1332.94 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 136.2 MB in the beginning and 179.7 MB in the end (delta: -43.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-19 23:01:34,379 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory is still 120.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 484.95 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 176.3 MB in the end (delta: -74.8 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.13 ms. Allocated memory is still 200.8 MB. Free memory was 176.3 MB in the beginning and 173.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 672.47 ms. Allocated memory is still 200.8 MB. Free memory was 173.3 MB in the beginning and 137.2 MB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1332.94 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 136.2 MB in the beginning and 179.7 MB in the end (delta: -43.5 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)=9223372034706243599, \old(Zero_fmod)=9223372034706243590, 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=9, 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=9, 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: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, 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, 0.2s 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...