/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_VARIABLES --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 01:10:21,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:10:21,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:10:21,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:10:21,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:10:21,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:10:21,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:10:21,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:10:21,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:10:21,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:10:21,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:10:21,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:10:21,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:10:21,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:10:21,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:10:21,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:10:21,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:10:21,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:10:21,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:10:21,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:10:21,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:10:21,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:10:21,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:10:21,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:10:21,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:10:21,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:10:21,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:10:21,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:10:21,108 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 01:10:21,144 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:10:21,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:10:21,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:10:21,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:10:21,149 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:10:21,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:10:21,150 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:10:21,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:10:21,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:10:21,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:10:21,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:10:21,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:10:21,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:10:21,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:10:21,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:10:21,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:10:21,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:10:21,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:10:21,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:10:21,155 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:10:21,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:10:21,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:10:21,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:10:21,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:10:21,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:10:21,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:10:21,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:10:21,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:10:21,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:10:21,157 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_VARIABLES 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 01:10:21,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:10:21,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:10:21,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:10:21,460 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:10:21,461 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:10:21,462 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-20 01:10:21,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d8f297d/0a6005c6667846ce817967bd577642b3/FLAG9d660090d [2020-07-20 01:10:22,037 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:10:22,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-07-20 01:10:22,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d8f297d/0a6005c6667846ce817967bd577642b3/FLAG9d660090d [2020-07-20 01:10:22,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66d8f297d/0a6005c6667846ce817967bd577642b3 [2020-07-20 01:10:22,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:10:22,398 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:10:22,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:10:22,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:10:22,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:10:22,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46df0683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22, skipping insertion in model container [2020-07-20 01:10:22,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:10:22,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:10:22,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:10:22,720 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:10:22,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:10:22,885 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:10:22,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22 WrapperNode [2020-07-20 01:10:22,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:10:22,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:10:22,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:10:22,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:10:22,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (1/1) ... [2020-07-20 01:10:22,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:10:22,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:10:22,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:10:22,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:10:22,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (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 01:10:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:10:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:10:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-20 01:10:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-07-20 01:10:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-07-20 01:10:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:10:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:10:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-20 01:10:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-20 01:10:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-07-20 01:10:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 01:10:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-20 01:10:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 01:10:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 01:10:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-20 01:10:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 01:10:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-07-20 01:10:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:10:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:10:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-07-20 01:10:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:10:23,706 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:10:23,707 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-20 01:10:23,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:10:23 BoogieIcfgContainer [2020-07-20 01:10:23,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:10:23,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:10:23,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:10:23,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:10:23,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:10:22" (1/3) ... [2020-07-20 01:10:23,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c237eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:10:23, skipping insertion in model container [2020-07-20 01:10:23,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:10:22" (2/3) ... [2020-07-20 01:10:23,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c237eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:10:23, skipping insertion in model container [2020-07-20 01:10:23,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:10:23" (3/3) ... [2020-07-20 01:10:23,721 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-07-20 01:10:23,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:10:23,740 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:10:23,753 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:10:23,784 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:10:23,784 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:10:23,784 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:10:23,785 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:10:23,785 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:10:23,785 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:10:23,785 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:10:23,786 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:10:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2020-07-20 01:10:23,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 01:10:23,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:10:23,820 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 01:10:23,820 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:10:23,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:10:23,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1043474736, now seen corresponding path program 1 times [2020-07-20 01:10:23,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:10:23,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039085070] [2020-07-20 01:10:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@49ec1672 [2020-07-20 01:10:23,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:10:24,114 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 01:10:24,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039085070] [2020-07-20 01:10:24,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:10:24,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 01:10:24,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810995135] [2020-07-20 01:10:24,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 01:10:24,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:10:24,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 01:10:24,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 01:10:24,138 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2020-07-20 01:10:24,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:10:24,449 INFO L93 Difference]: Finished difference Result 138 states and 227 transitions. [2020-07-20 01:10:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 01:10:24,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-20 01:10:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:10:24,486 INFO L225 Difference]: With dead ends: 138 [2020-07-20 01:10:24,487 INFO L226 Difference]: Without dead ends: 68 [2020-07-20 01:10:24,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:10:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-20 01:10:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-20 01:10:24,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-20 01:10:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-07-20 01:10:24,562 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 25 [2020-07-20 01:10:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:10:24,563 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-07-20 01:10:24,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 01:10:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-07-20 01:10:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-20 01:10:24,566 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:10:24,566 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 01:10:24,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:10:24,567 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:10:24,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:10:24,567 INFO L82 PathProgramCache]: Analyzing trace with hash 415947806, now seen corresponding path program 1 times [2020-07-20 01:10:24,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:10:24,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552511526] [2020-07-20 01:10:24,568 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@49ec1672 [2020-07-20 01:10:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:10:24,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:10:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 01:10:24,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 01:10:24,917 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 01:10:24,918 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 01:10:24,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 01:10:25,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:10:25 BoogieIcfgContainer [2020-07-20 01:10:25,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:10:25,005 INFO L168 Benchmark]: Toolchain (without parser) took 2606.15 ms. Allocated memory was 137.9 MB in the beginning and 234.9 MB in the end (delta: 97.0 MB). Free memory was 102.1 MB in the beginning and 181.3 MB in the end (delta: -79.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:25,006 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 01:10:25,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.94 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 178.1 MB in the end (delta: -76.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:25,010 INFO L168 Benchmark]: Boogie Preprocessor took 62.03 ms. Allocated memory is still 202.9 MB. Free memory was 178.1 MB in the beginning and 175.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:25,011 INFO L168 Benchmark]: RCFGBuilder took 762.95 ms. Allocated memory is still 202.9 MB. Free memory was 175.3 MB in the beginning and 139.3 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:10:25,013 INFO L168 Benchmark]: TraceAbstraction took 1288.67 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 138.6 MB in the beginning and 181.3 MB in the end (delta: -42.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 01:10:25,022 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 486.94 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 178.1 MB in the end (delta: -76.1 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.03 ms. Allocated memory is still 202.9 MB. Free memory was 178.1 MB in the beginning and 175.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 762.95 ms. Allocated memory is still 202.9 MB. Free memory was 175.3 MB in the beginning and 139.3 MB in the end (delta: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1288.67 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 138.6 MB in the beginning and 181.3 MB in the end (delta: -42.7 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=-2, hx=0, one_fmod=1, x=9223372034706243588, Zero_fmod={3:0}] [L183] RET isfinite_double(x) VAL [isfinite_double(x)=-2, 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, 0.0s 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...