/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 -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 0.1.25-5644d1e-m [2020-08-19 01:05:20,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 01:05:20,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 01:05:20,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 01:05:20,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 01:05:20,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 01:05:20,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 01:05:20,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 01:05:20,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 01:05:20,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 01:05:20,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 01:05:20,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 01:05:20,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 01:05:20,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 01:05:20,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 01:05:20,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 01:05:20,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 01:05:20,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 01:05:20,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 01:05:20,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 01:05:20,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 01:05:20,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 01:05:20,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 01:05:20,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 01:05:20,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 01:05:20,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 01:05:20,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 01:05:20,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 01:05:20,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 01:05:20,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-19 01:05:20,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 01:05:20,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 01:05:20,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 01:05:20,798 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 01:05:20,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 01:05:20,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 01:05:20,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 01:05:20,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 01:05:20,823 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 01:05:20,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 01:05:20,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 01:05:20,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 01:05:20,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 01:05:20,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 01:05:20,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 01:05:20,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 01:05:20,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 01:05:20,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 01:05:20,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 01:05:20,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 01:05:20,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 01:05:20,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 01:05:20,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 01:05:20,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 01:05:20,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 01:05:20,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 01:05:20,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 01:05:20,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 01:05:20,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 01:05:20,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 01:05:20,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 01:05:20,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 01:05:20,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 01:05:20,828 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6; [2020-08-19 01:05:21,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 01:05:21,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 01:05:21,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 01:05:21,184 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 01:05:21,185 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 01:05:21,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-08-19 01:05:21,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/474d6d776/9aea8df9baaa47599c4b739e50940b2d/FLAGb0d227279 [2020-08-19 01:05:21,733 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 01:05:21,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp6.c [2020-08-19 01:05:21,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/474d6d776/9aea8df9baaa47599c4b739e50940b2d/FLAGb0d227279 [2020-08-19 01:05:22,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/474d6d776/9aea8df9baaa47599c4b739e50940b2d [2020-08-19 01:05:22,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 01:05:22,137 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 01:05:22,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 01:05:22,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 01:05:22,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 01:05:22,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c39f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22, skipping insertion in model container [2020-08-19 01:05:22,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 01:05:22,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 01:05:22,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:05:22,386 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 01:05:22,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 01:05:22,425 INFO L208 MainTranslator]: Completed translation [2020-08-19 01:05:22,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22 WrapperNode [2020-08-19 01:05:22,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 01:05:22,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 01:05:22,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 01:05:22,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 01:05:22,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... [2020-08-19 01:05:22,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 01:05:22,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 01:05:22,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 01:05:22,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 01:05:22,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 01:05:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 01:05:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 01:05:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2020-08-19 01:05:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2020-08-19 01:05:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-08-19 01:05:22,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 01:05:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 01:05:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2020-08-19 01:05:22,597 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2020-08-19 01:05:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-08-19 01:05:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 01:05:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 01:05:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 01:05:22,773 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 01:05:22,773 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 01:05:22,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:05:22 BoogieIcfgContainer [2020-08-19 01:05:22,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 01:05:22,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 01:05:22,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 01:05:22,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 01:05:22,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 01:05:22" (1/3) ... [2020-08-19 01:05:22,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c7b676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:05:22, skipping insertion in model container [2020-08-19 01:05:22,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 01:05:22" (2/3) ... [2020-08-19 01:05:22,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c7b676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 01:05:22, skipping insertion in model container [2020-08-19 01:05:22,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 01:05:22" (3/3) ... [2020-08-19 01:05:22,791 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2020-08-19 01:05:22,799 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 01:05:22,805 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-08-19 01:05:22,818 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-08-19 01:05:22,851 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 01:05:22,851 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 01:05:22,852 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 01:05:22,852 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 01:05:22,852 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 01:05:22,852 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 01:05:22,852 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 01:05:22,852 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 01:05:22,875 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-08-19 01:05:22,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-08-19 01:05:22,880 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 01:05:22,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 01:05:22,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 01:05:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 01:05:22,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2020-08-19 01:05:22,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 01:05:22,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591492914] [2020-08-19 01:05:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 01:05:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 01:05:22,984 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 01:05:22,985 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 01:05:22,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 01:05:23,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 01:05:23 BoogieIcfgContainer [2020-08-19 01:05:23,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 01:05:23,011 INFO L168 Benchmark]: Toolchain (without parser) took 872.89 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 103.3 MB in the beginning and 156.9 MB in the end (delta: -53.6 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2020-08-19 01:05:23,012 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-19 01:05:23,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.11 ms. Allocated memory is still 140.0 MB. Free memory was 102.9 MB in the beginning and 91.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-19 01:05:23,014 INFO L168 Benchmark]: Boogie Preprocessor took 109.87 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.2 MB in the beginning and 180.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-19 01:05:23,015 INFO L168 Benchmark]: RCFGBuilder took 241.89 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 168.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-08-19 01:05:23,016 INFO L168 Benchmark]: TraceAbstraction took 226.13 ms. Allocated memory is still 202.4 MB. Free memory was 167.5 MB in the beginning and 156.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-19 01:05:23,020 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.1 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.11 ms. Allocated memory is still 140.0 MB. Free memory was 102.9 MB in the beginning and 91.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.87 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 91.2 MB in the beginning and 180.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.89 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 168.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226.13 ms. Allocated memory is still 202.4 MB. Free memory was 167.5 MB in the beginning and 156.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 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; [L23] COND TRUE !(res == 0x1.0p-126f) [L23] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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, 1 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...