/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:26:59,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:26:59,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:26:59,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:26:59,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:26:59,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:26:59,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:26:59,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:26:59,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:26:59,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:26:59,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:26:59,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:26:59,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:26:59,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:26:59,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:26:59,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:26:59,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:26:59,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:26:59,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:26:59,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:26:59,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:26:59,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:26:59,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:26:59,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:26:59,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 16:26:59,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:26:59,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:26:59,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:26:59,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:26:59,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:26:59,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:26:59,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:26:59,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:26:59,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:26:59,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:26:59,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:26:59,946 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 16:26:59,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:26:59,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:26:59,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:26:59,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:26:59,967 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:26:59,967 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:26:59,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:26:59,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:26:59,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:26:59,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:26:59,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:26:59,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:26:59,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:26:59,969 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:26:59,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:26:59,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:26:59,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:26:59,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:26:59,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:26:59,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:26:59,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:26:59,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:26:59,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:26:59,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:26:59,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:26:59,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:26:59,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:59,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:26:59,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:26:59,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC 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 [2020-07-20 16:27:00,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:27:00,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:27:00,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:27:00,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:27:00,313 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:27:00,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c [2020-07-20 16:27:00,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1c0d6cd/cf3be7dcc0ac407eb85999abd7494d78/FLAG102b6be56 [2020-07-20 16:27:00,830 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:27:00,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float13.c [2020-07-20 16:27:00,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1c0d6cd/cf3be7dcc0ac407eb85999abd7494d78/FLAG102b6be56 [2020-07-20 16:27:01,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c1c0d6cd/cf3be7dcc0ac407eb85999abd7494d78 [2020-07-20 16:27:01,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:27:01,220 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:27:01,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:27:01,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:27:01,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:27:01,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5914c42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01, skipping insertion in model container [2020-07-20 16:27:01,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:27:01,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:27:01,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:27:01,448 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:27:01,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:27:01,478 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:27:01,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01 WrapperNode [2020-07-20 16:27:01,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:27:01,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:27:01,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:27:01,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:27:01,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... [2020-07-20 16:27:01,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:27:01,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:27:01,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:27:01,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:27:01,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:27:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:27:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:27:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:27:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:27:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:27:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:27:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:27:01,937 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:27:01,937 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 16:27:01,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:27:01 BoogieIcfgContainer [2020-07-20 16:27:01,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:27:01,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:27:01,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:27:01,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:27:01,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:27:01" (1/3) ... [2020-07-20 16:27:01,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333f0064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:27:01, skipping insertion in model container [2020-07-20 16:27:01,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:27:01" (2/3) ... [2020-07-20 16:27:01,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333f0064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:27:01, skipping insertion in model container [2020-07-20 16:27:01,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:27:01" (3/3) ... [2020-07-20 16:27:01,966 INFO L109 eAbstractionObserver]: Analyzing ICFG float13.c [2020-07-20 16:27:01,985 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:27:01,993 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-07-20 16:27:02,014 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-07-20 16:27:02,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:27:02,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:27:02,044 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:27:02,044 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:27:02,044 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:27:02,044 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:27:02,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:27:02,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:27:02,064 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-07-20 16:27:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-20 16:27:02,070 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:27:02,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:27:02,071 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:27:02,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:27:02,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1459462506, now seen corresponding path program 1 times [2020-07-20 16:27:02,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:27:02,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497561255] [2020-07-20 16:27:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:27:02,155 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:27:02,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:27:02,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:27:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:27:02,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:27:02,188 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:27:02,189 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:27:02,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:27:02,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:27:02 BoogieIcfgContainer [2020-07-20 16:27:02,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:27:02,417 INFO L168 Benchmark]: Toolchain (without parser) took 1197.81 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 103.8 MB in the beginning and 151.6 MB in the end (delta: -47.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:27:02,418 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 16:27:02,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.16 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 93.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-20 16:27:02,420 INFO L168 Benchmark]: Boogie Preprocessor took 106.96 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.6 MB in the beginning and 181.4 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-20 16:27:02,421 INFO L168 Benchmark]: RCFGBuilder took 362.78 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 166.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-20 16:27:02,422 INFO L168 Benchmark]: TraceAbstraction took 464.60 ms. Allocated memory is still 202.9 MB. Free memory was 166.3 MB in the beginning and 151.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:27:02,427 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 258.16 ms. Allocated memory is still 138.9 MB. Free memory was 103.6 MB in the beginning and 93.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.96 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.6 MB in the beginning and 181.4 MB in the end (delta: -87.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.78 ms. Allocated memory is still 202.9 MB. Free memory was 181.4 MB in the beginning and 166.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 464.60 ms. Allocated memory is still 202.9 MB. Free memory was 166.3 MB in the beginning and 151.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 3. Possible FailurePath: [L3] const float plus_infinity = 1.0f/0.0f; [L4] const float minus_infinity = 0.0f/-0.0f; [L5] const float NaN = 0.0f * (1.0f/0.0f); VAL [\old(minus_infinity)=2, \old(NaN)=0, \old(plus_infinity)=1] [L9] _Bool temp; [L12] temp = NaN < plus_infinity VAL [temp=1] [L13] COND TRUE !(!temp) VAL [temp=1] [L13] __VERIFIER_error() VAL [temp=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...