/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_FUNCTIONS --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/float-no-simp6.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:05:19,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:05:19,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:05:19,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:05:19,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:05:19,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:05:19,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:05:19,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:05:19,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:05:19,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:05:19,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:05:19,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:05:19,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:05:19,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:05:19,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:05:19,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:05:19,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:05:19,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:05:19,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:05:19,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:05:19,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:05:19,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:05:19,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:05:19,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:05:19,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:05:19,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:05:19,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:05:19,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:05:19,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:05:19,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:05:19,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:05:19,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:05:19,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:05:19,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:05:19,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:05:19,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:05:19,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:05:19,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:05:19,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:05:19,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:05:19,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:05:19,866 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 13:05:19,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:05:19,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:05:19,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:05:19,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:05:19,905 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:05:19,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:05:19,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:05:19,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:05:19,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:05:19,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:05:19,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:05:19,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:05:19,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:05:19,906 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:05:19,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:05:19,907 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:05:19,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:05:19,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:05:19,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:05:19,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:05:19,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:05:19,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:05:19,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:05:19,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:05:19,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:05:19,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:05:19,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:05:19,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:05:19,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:05:19,909 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_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 13:05:20,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:05:20,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:05:20,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:05:20,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:05:20,220 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:05:20,222 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-07-20 13:05:20,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9181a7394/b8dd1e1f06c941a8820054d8b0b08f8b/FLAGf23553a25 [2020-07-20 13:05:20,735 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:05:20,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-07-20 13:05:20,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9181a7394/b8dd1e1f06c941a8820054d8b0b08f8b/FLAGf23553a25 [2020-07-20 13:05:21,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9181a7394/b8dd1e1f06c941a8820054d8b0b08f8b [2020-07-20 13:05:21,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:05:21,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:05:21,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:05:21,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:05:21,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:05:21,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@545b7894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21, skipping insertion in model container [2020-07-20 13:05:21,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:05:21,158 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:05:21,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:05:21,339 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:05:21,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:05:21,376 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:05:21,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21 WrapperNode [2020-07-20 13:05:21,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:05:21,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:05:21,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:05:21,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:05:21,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (1/1) ... [2020-07-20 13:05:21,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:05:21,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:05:21,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:05:21,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:05:21,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (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 13:05:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:05:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:05:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2020-07-20 13:05:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2020-07-20 13:05:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-20 13:05:21,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:05:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:05:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2020-07-20 13:05:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2020-07-20 13:05:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-20 13:05:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:05:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:05:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:05:21,785 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:05:21,785 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-20 13:05:21,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:05:21 BoogieIcfgContainer [2020-07-20 13:05:21,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:05:21,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:05:21,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:05:21,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:05:21,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:05:21" (1/3) ... [2020-07-20 13:05:21,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b567fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:05:21, skipping insertion in model container [2020-07-20 13:05:21,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:05:21" (2/3) ... [2020-07-20 13:05:21,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b567fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:05:21, skipping insertion in model container [2020-07-20 13:05:21,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:05:21" (3/3) ... [2020-07-20 13:05:21,797 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2020-07-20 13:05:21,806 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:05:21,813 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-20 13:05:21,827 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-20 13:05:21,852 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:05:21,852 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:05:21,852 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:05:21,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:05:21,853 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:05:21,853 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:05:21,853 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:05:21,853 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:05:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-07-20 13:05:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-20 13:05:21,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:05:21,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:05:21,880 INFO L427 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:05:21,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:05:21,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2020-07-20 13:05:21,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:05:21,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420057945] [2020-07-20 13:05:21,897 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 13:05:21,955 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:05:21,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:05:21,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:05:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:05:21,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:05:21,983 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:05:21,984 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:05:22,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:05:22,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:05:22 BoogieIcfgContainer [2020-07-20 13:05:22,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:05:22,232 INFO L168 Benchmark]: Toolchain (without parser) took 1103.99 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 104.6 MB in the beginning and 160.8 MB in the end (delta: -56.1 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:05:22,233 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:05:22,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.42 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 92.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:05:22,238 INFO L168 Benchmark]: Boogie Preprocessor took 34.18 ms. Allocated memory is still 146.8 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:05:22,239 INFO L168 Benchmark]: RCFGBuilder took 377.29 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 91.5 MB in the beginning and 174.6 MB in the end (delta: -83.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-20 13:05:22,241 INFO L168 Benchmark]: TraceAbstraction took 436.96 ms. Allocated memory is still 207.6 MB. Free memory was 174.6 MB in the beginning and 160.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-20 13:05:22,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 250.42 ms. Allocated memory is still 146.8 MB. Free memory was 104.4 MB in the beginning and 92.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.18 ms. Allocated memory is still 146.8 MB. Free memory was 92.9 MB in the beginning and 91.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 377.29 ms. Allocated memory was 146.8 MB in the beginning and 207.6 MB in the end (delta: 60.8 MB). Free memory was 91.5 MB in the beginning and 174.6 MB in the end (delta: -83.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 436.96 ms. Allocated memory is still 207.6 MB. Free memory was 174.6 MB in the beginning and 160.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 23]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L47] CALL multiply() [L18] float f1=0x1.000000p-1f; [L19] float f2=0x1.fffffep-126f; [L21] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L23] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L23] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 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=29occurred 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...