/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 BIGGEST_EQUIVALENCE_CLASS --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 05:28:23,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 05:28:23,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 05:28:23,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 05:28:23,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 05:28:23,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 05:28:23,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 05:28:23,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 05:28:23,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 05:28:23,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 05:28:23,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 05:28:23,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 05:28:23,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 05:28:23,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 05:28:23,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 05:28:23,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 05:28:23,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 05:28:23,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 05:28:23,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 05:28:23,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 05:28:23,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 05:28:23,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 05:28:23,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 05:28:23,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 05:28:23,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 05:28:23,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 05:28:23,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 05:28:23,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 05:28:23,131 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 05:28:23,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 05:28:23,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 05:28:23,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 05:28:23,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 05:28:23,148 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 05:28:23,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 05:28:23,148 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 05:28:23,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 05:28:23,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 05:28:23,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 05:28:23,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 05:28:23,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 05:28:23,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 05:28:23,149 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 05:28:23,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 05:28:23,150 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 05:28:23,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 05:28:23,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 05:28:23,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 05:28:23,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 05:28:23,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 05:28:23,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 05:28:23,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 05:28:23,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 05:28:23,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 05:28:23,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 05:28:23,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 05:28:23,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 05:28:23,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 05:28:23,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS 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 05:28:23,462 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 05:28:23,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 05:28:23,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 05:28:23,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 05:28:23,479 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 05:28:23,480 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-20 05:28:23,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f62379f4/12222e415e5845e2b220eba11d157a75/FLAGbc8cc4542 [2020-07-20 05:28:24,023 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 05:28:24,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-20 05:28:24,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f62379f4/12222e415e5845e2b220eba11d157a75/FLAGbc8cc4542 [2020-07-20 05:28:24,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f62379f4/12222e415e5845e2b220eba11d157a75 [2020-07-20 05:28:24,379 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 05:28:24,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 05:28:24,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 05:28:24,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 05:28:24,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 05:28:24,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10fc3a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24, skipping insertion in model container [2020-07-20 05:28:24,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 05:28:24,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 05:28:24,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:28:24,741 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 05:28:24,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 05:28:24,845 INFO L208 MainTranslator]: Completed translation [2020-07-20 05:28:24,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24 WrapperNode [2020-07-20 05:28:24,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 05:28:24,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 05:28:24,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 05:28:24,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 05:28:24,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (1/1) ... [2020-07-20 05:28:24,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 05:28:24,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 05:28:24,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 05:28:24,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 05:28:24,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (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 05:28:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 05:28:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 05:28:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-20 05:28:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-20 05:28:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-20 05:28:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 05:28:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 05:28:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-20 05:28:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-20 05:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-20 05:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 05:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 05:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 05:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 05:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 05:28:24,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 05:28:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-20 05:28:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 05:28:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 05:28:24,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-20 05:28:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 05:28:25,573 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 05:28:25,573 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-20 05:28:25,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:25 BoogieIcfgContainer [2020-07-20 05:28:25,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 05:28:25,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 05:28:25,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 05:28:25,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 05:28:25,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:28:24" (1/3) ... [2020-07-20 05:28:25,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5086ba09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:25, skipping insertion in model container [2020-07-20 05:28:25,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:24" (2/3) ... [2020-07-20 05:28:25,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5086ba09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:25, skipping insertion in model container [2020-07-20 05:28:25,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:25" (3/3) ... [2020-07-20 05:28:25,586 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-20 05:28:25,597 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 05:28:25,605 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 05:28:25,616 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 05:28:25,641 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 05:28:25,641 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 05:28:25,641 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 05:28:25,642 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 05:28:25,642 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 05:28:25,642 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 05:28:25,642 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 05:28:25,643 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 05:28:25,663 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-20 05:28:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 05:28:25,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:28:25,671 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 05:28:25,672 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:28:25,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:28:25,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-07-20 05:28:25,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:28:25,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166799118] [2020-07-20 05:28:25,689 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@119ae803 [2020-07-20 05:28:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:28:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:28:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:28:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 05:28:25,995 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 05:28:25,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166799118] [2020-07-20 05:28:25,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 05:28:25,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 05:28:25,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136363517] [2020-07-20 05:28:26,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 05:28:26,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 05:28:26,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 05:28:26,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 05:28:26,021 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-20 05:28:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 05:28:26,334 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-20 05:28:26,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 05:28:26,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-20 05:28:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 05:28:26,346 INFO L225 Difference]: With dead ends: 138 [2020-07-20 05:28:26,346 INFO L226 Difference]: Without dead ends: 68 [2020-07-20 05:28:26,351 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 05:28:26,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-20 05:28:26,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-20 05:28:26,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-20 05:28:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-20 05:28:26,391 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-20 05:28:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 05:28:26,392 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-20 05:28:26,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 05:28:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-20 05:28:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 05:28:26,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 05:28:26,394 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 05:28:26,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 05:28:26,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 05:28:26,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 05:28:26,395 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-07-20 05:28:26,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 05:28:26,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116524008] [2020-07-20 05:28:26,396 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@119ae803 [2020-07-20 05:28:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 05:28:26,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 05:28:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 05:28:26,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 05:28:26,686 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 05:28:26,687 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 05:28:26,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 05:28:26,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:28:26 BoogieIcfgContainer [2020-07-20 05:28:26,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 05:28:26,732 INFO L168 Benchmark]: Toolchain (without parser) took 2350.79 ms. Allocated memory was 137.9 MB in the beginning and 233.3 MB in the end (delta: 95.4 MB). Free memory was 102.1 MB in the beginning and 179.3 MB in the end (delta: -77.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 7.1 GB. [2020-07-20 05:28:26,734 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 05:28:26,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.29 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 175.5 MB in the end (delta: -73.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-07-20 05:28:26,737 INFO L168 Benchmark]: Boogie Preprocessor took 61.84 ms. Allocated memory is still 200.8 MB. Free memory was 175.5 MB in the beginning and 172.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-20 05:28:26,738 INFO L168 Benchmark]: RCFGBuilder took 669.35 ms. Allocated memory is still 200.8 MB. Free memory was 172.8 MB in the beginning and 136.4 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2020-07-20 05:28:26,739 INFO L168 Benchmark]: TraceAbstraction took 1150.16 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 135.7 MB in the beginning and 179.3 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 05:28:26,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 463.29 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.7 MB in the beginning and 175.5 MB in the end (delta: -73.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.84 ms. Allocated memory is still 200.8 MB. Free memory was 175.5 MB in the beginning and 172.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 669.35 ms. Allocated memory is still 200.8 MB. Free memory was 172.8 MB in the beginning and 136.4 MB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1150.16 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 135.7 MB in the beginning and 179.3 MB in the end (delta: -43.6 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=0, 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: 1.0s, 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, 0.1s 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...