/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:14:24,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:14:24,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:14:24,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:14:24,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:14:24,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:14:24,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:14:24,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:14:24,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:14:24,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:14:24,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:14:24,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:14:24,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:14:24,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:14:24,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:14:24,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:14:24,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:14:24,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:14:24,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:14:24,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:14:24,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:14:24,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:14:24,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:14:24,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:14:24,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-21 23:14:24,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-21 23:14:24,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-21 23:14:24,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-21 23:14:24,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-21 23:14:24,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-21 23:14:24,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-21 23:14:24,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-21 23:14:24,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-21 23:14:24,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-21 23:14:24,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-21 23:14:24,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-21 23:14:24,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-21 23:14:24,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-21 23:14:24,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:14:24,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:14:24,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:14:24,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:14:24,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:14:24,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:14:24,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:14:24,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:14:24,963 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:14:24,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:14:24,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:14:24,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:14:24,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:14:24,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:14:24,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:14:24,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:14:24,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:14:24,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:14:24,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:14:24,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:14:24,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:14:24,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:14:24,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:14:24,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:14:24,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:14:24,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:14:24,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:14:24,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:14:24,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:14:24,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:14:25,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:14:25,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:14:25,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:14:25,447 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:14:25,448 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:14:25,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2020-12-21 23:14:25,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efeaf55c9/8ba1d97b8b5649cbbb965dd5e3d5c5e7/FLAG4b15ecdb4 [2020-12-21 23:14:26,344 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:14:26,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2020-12-21 23:14:26,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efeaf55c9/8ba1d97b8b5649cbbb965dd5e3d5c5e7/FLAG4b15ecdb4 [2020-12-21 23:14:26,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efeaf55c9/8ba1d97b8b5649cbbb965dd5e3d5c5e7 [2020-12-21 23:14:26,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:14:26,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:14:26,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:14:26,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:14:26,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:14:26,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:14:26" (1/1) ... [2020-12-21 23:14:26,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31078b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:26, skipping insertion in model container [2020-12-21 23:14:26,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:14:26" (1/1) ... [2020-12-21 23:14:26,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:14:26,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:14:26,883 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[450,463] [2020-12-21 23:14:26,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:14:26,994 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:14:27,009 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c[450,463] [2020-12-21 23:14:27,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:14:27,061 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:14:27,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27 WrapperNode [2020-12-21 23:14:27,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:14:27,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:14:27,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:14:27,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:14:27,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:14:27,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:14:27,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:14:27,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:14:27,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (1/1) ... [2020-12-21 23:14:27,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:14:27,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:14:27,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:14:27,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:14:27,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (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 [2020-12-21 23:14:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:14:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:14:27,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:14:27,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:14:28,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:14:28,037 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2020-12-21 23:14:28,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:14:28 BoogieIcfgContainer [2020-12-21 23:14:28,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:14:28,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:14:28,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:14:28,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:14:28,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:14:26" (1/3) ... [2020-12-21 23:14:28,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6536c4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:14:28, skipping insertion in model container [2020-12-21 23:14:28,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:14:27" (2/3) ... [2020-12-21 23:14:28,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6536c4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:14:28, skipping insertion in model container [2020-12-21 23:14:28,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:14:28" (3/3) ... [2020-12-21 23:14:28,049 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2020-12-21 23:14:28,057 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:14:28,063 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-21 23:14:28,084 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-21 23:14:28,116 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:14:28,116 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:14:28,116 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:14:28,116 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:14:28,116 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:14:28,117 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:14:28,117 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:14:28,117 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:14:28,138 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-12-21 23:14:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-21 23:14:28,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:28,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:14:28,148 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:28,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1626643796, now seen corresponding path program 1 times [2020-12-21 23:14:28,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:28,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179655264] [2020-12-21 23:14:28,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:28,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:28,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179655264] [2020-12-21 23:14:28,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:28,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:14:28,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423645137] [2020-12-21 23:14:28,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:14:28,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:28,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:14:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:14:28,628 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 7 states. [2020-12-21 23:14:29,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:29,107 INFO L93 Difference]: Finished difference Result 448 states and 682 transitions. [2020-12-21 23:14:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-21 23:14:29,109 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-12-21 23:14:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:29,128 INFO L225 Difference]: With dead ends: 448 [2020-12-21 23:14:29,130 INFO L226 Difference]: Without dead ends: 340 [2020-12-21 23:14:29,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-12-21 23:14:29,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-12-21 23:14:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2020-12-21 23:14:29,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-12-21 23:14:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 203 transitions. [2020-12-21 23:14:29,245 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 203 transitions. Word has length 18 [2020-12-21 23:14:29,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:29,246 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 203 transitions. [2020-12-21 23:14:29,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:14:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 203 transitions. [2020-12-21 23:14:29,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-21 23:14:29,248 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:29,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:14:29,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:14:29,249 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:29,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:29,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1626703378, now seen corresponding path program 1 times [2020-12-21 23:14:29,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:29,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654772472] [2020-12-21 23:14:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:29,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:29,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654772472] [2020-12-21 23:14:29,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:29,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-21 23:14:29,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681522271] [2020-12-21 23:14:29,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:14:29,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:29,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:14:29,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:14:29,431 INFO L87 Difference]: Start difference. First operand 140 states and 203 transitions. Second operand 6 states. [2020-12-21 23:14:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:29,618 INFO L93 Difference]: Finished difference Result 295 states and 421 transitions. [2020-12-21 23:14:29,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-21 23:14:29,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-12-21 23:14:29,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:29,621 INFO L225 Difference]: With dead ends: 295 [2020-12-21 23:14:29,622 INFO L226 Difference]: Without dead ends: 213 [2020-12-21 23:14:29,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-21 23:14:29,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-12-21 23:14:29,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 200. [2020-12-21 23:14:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-12-21 23:14:29,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 286 transitions. [2020-12-21 23:14:29,650 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 286 transitions. Word has length 18 [2020-12-21 23:14:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:29,651 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 286 transitions. [2020-12-21 23:14:29,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:14:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 286 transitions. [2020-12-21 23:14:29,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-21 23:14:29,653 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:29,653 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] [2020-12-21 23:14:29,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:14:29,654 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:29,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:29,655 INFO L82 PathProgramCache]: Analyzing trace with hash 442130173, now seen corresponding path program 1 times [2020-12-21 23:14:29,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:29,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472134725] [2020-12-21 23:14:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:29,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472134725] [2020-12-21 23:14:29,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:29,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-21 23:14:29,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639117337] [2020-12-21 23:14:29,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-21 23:14:29,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:29,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-21 23:14:29,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-21 23:14:29,816 INFO L87 Difference]: Start difference. First operand 200 states and 286 transitions. Second operand 7 states. [2020-12-21 23:14:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:30,071 INFO L93 Difference]: Finished difference Result 311 states and 417 transitions. [2020-12-21 23:14:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-21 23:14:30,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-12-21 23:14:30,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:30,074 INFO L225 Difference]: With dead ends: 311 [2020-12-21 23:14:30,075 INFO L226 Difference]: Without dead ends: 265 [2020-12-21 23:14:30,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-12-21 23:14:30,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-12-21 23:14:30,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 189. [2020-12-21 23:14:30,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-12-21 23:14:30,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 269 transitions. [2020-12-21 23:14:30,096 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 269 transitions. Word has length 22 [2020-12-21 23:14:30,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:30,097 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 269 transitions. [2020-12-21 23:14:30,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-21 23:14:30,097 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 269 transitions. [2020-12-21 23:14:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-21 23:14:30,102 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:30,103 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] [2020-12-21 23:14:30,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:14:30,103 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:30,104 INFO L82 PathProgramCache]: Analyzing trace with hash 65769050, now seen corresponding path program 1 times [2020-12-21 23:14:30,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:30,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383003722] [2020-12-21 23:14:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:30,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383003722] [2020-12-21 23:14:30,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:30,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:14:30,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733253367] [2020-12-21 23:14:30,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:14:30,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:30,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:14:30,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:14:30,186 INFO L87 Difference]: Start difference. First operand 189 states and 269 transitions. Second operand 3 states. [2020-12-21 23:14:30,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:30,207 INFO L93 Difference]: Finished difference Result 341 states and 483 transitions. [2020-12-21 23:14:30,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:14:30,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-21 23:14:30,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:30,210 INFO L225 Difference]: With dead ends: 341 [2020-12-21 23:14:30,211 INFO L226 Difference]: Without dead ends: 266 [2020-12-21 23:14:30,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:14:30,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-21 23:14:30,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 239. [2020-12-21 23:14:30,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-12-21 23:14:30,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 333 transitions. [2020-12-21 23:14:30,230 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 333 transitions. Word has length 26 [2020-12-21 23:14:30,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:30,230 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 333 transitions. [2020-12-21 23:14:30,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:14:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 333 transitions. [2020-12-21 23:14:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-21 23:14:30,233 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:30,233 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] [2020-12-21 23:14:30,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-21 23:14:30,234 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:30,234 INFO L82 PathProgramCache]: Analyzing trace with hash -855546000, now seen corresponding path program 1 times [2020-12-21 23:14:30,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:30,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188436769] [2020-12-21 23:14:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:30,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188436769] [2020-12-21 23:14:30,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:30,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-21 23:14:30,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868307238] [2020-12-21 23:14:30,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-21 23:14:30,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:30,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-21 23:14:30,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:14:30,308 INFO L87 Difference]: Start difference. First operand 239 states and 333 transitions. Second operand 5 states. [2020-12-21 23:14:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:30,426 INFO L93 Difference]: Finished difference Result 602 states and 826 transitions. [2020-12-21 23:14:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-21 23:14:30,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-21 23:14:30,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:30,429 INFO L225 Difference]: With dead ends: 602 [2020-12-21 23:14:30,430 INFO L226 Difference]: Without dead ends: 439 [2020-12-21 23:14:30,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-21 23:14:30,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-12-21 23:14:30,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 296. [2020-12-21 23:14:30,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-12-21 23:14:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 410 transitions. [2020-12-21 23:14:30,448 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 410 transitions. Word has length 26 [2020-12-21 23:14:30,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:30,448 INFO L481 AbstractCegarLoop]: Abstraction has 296 states and 410 transitions. [2020-12-21 23:14:30,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-21 23:14:30,449 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 410 transitions. [2020-12-21 23:14:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-21 23:14:30,451 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:30,451 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, 1, 1] [2020-12-21 23:14:30,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:14:30,451 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:30,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:30,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1868481670, now seen corresponding path program 1 times [2020-12-21 23:14:30,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:30,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739989488] [2020-12-21 23:14:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:30,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739989488] [2020-12-21 23:14:30,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:30,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-21 23:14:30,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769071764] [2020-12-21 23:14:30,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-21 23:14:30,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:30,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-21 23:14:30,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-21 23:14:30,533 INFO L87 Difference]: Start difference. First operand 296 states and 410 transitions. Second operand 4 states. [2020-12-21 23:14:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:30,565 INFO L93 Difference]: Finished difference Result 425 states and 590 transitions. [2020-12-21 23:14:30,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-21 23:14:30,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-12-21 23:14:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:30,569 INFO L225 Difference]: With dead ends: 425 [2020-12-21 23:14:30,569 INFO L226 Difference]: Without dead ends: 350 [2020-12-21 23:14:30,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-21 23:14:30,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-12-21 23:14:30,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 310. [2020-12-21 23:14:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-12-21 23:14:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 419 transitions. [2020-12-21 23:14:30,594 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 419 transitions. Word has length 30 [2020-12-21 23:14:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:30,595 INFO L481 AbstractCegarLoop]: Abstraction has 310 states and 419 transitions. [2020-12-21 23:14:30,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-21 23:14:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 419 transitions. [2020-12-21 23:14:30,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-21 23:14:30,599 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:30,599 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, 1, 1] [2020-12-21 23:14:30,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:14:30,600 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1878814160, now seen corresponding path program 1 times [2020-12-21 23:14:30,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:30,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993006838] [2020-12-21 23:14:30,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:14:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:14:30,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993006838] [2020-12-21 23:14:30,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:14:30,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-21 23:14:30,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97965713] [2020-12-21 23:14:30,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-21 23:14:30,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:14:30,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-21 23:14:30,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-21 23:14:30,742 INFO L87 Difference]: Start difference. First operand 310 states and 419 transitions. Second operand 6 states. [2020-12-21 23:14:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:14:31,056 INFO L93 Difference]: Finished difference Result 803 states and 1088 transitions. [2020-12-21 23:14:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-21 23:14:31,057 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-12-21 23:14:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:14:31,061 INFO L225 Difference]: With dead ends: 803 [2020-12-21 23:14:31,062 INFO L226 Difference]: Without dead ends: 696 [2020-12-21 23:14:31,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-12-21 23:14:31,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-12-21 23:14:31,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 448. [2020-12-21 23:14:31,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-12-21 23:14:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 608 transitions. [2020-12-21 23:14:31,088 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 608 transitions. Word has length 30 [2020-12-21 23:14:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:14:31,088 INFO L481 AbstractCegarLoop]: Abstraction has 448 states and 608 transitions. [2020-12-21 23:14:31,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-21 23:14:31,088 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 608 transitions. [2020-12-21 23:14:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-21 23:14:31,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:14:31,090 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, 1, 1] [2020-12-21 23:14:31,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-21 23:14:31,090 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:14:31,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:14:31,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1878873742, now seen corresponding path program 1 times [2020-12-21 23:14:31,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:14:31,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297946179] [2020-12-21 23:14:31,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:14:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-21 23:14:31,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-21 23:14:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-21 23:14:31,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-21 23:14:31,185 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-21 23:14:31,185 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-21 23:14:31,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-21 23:14:31,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:14:31 BoogieIcfgContainer [2020-12-21 23:14:31,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:14:31,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:14:31,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:14:31,238 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:14:31,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:14:28" (3/4) ... [2020-12-21 23:14:31,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-21 23:14:31,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:14:31,244 INFO L168 Benchmark]: Toolchain (without parser) took 4566.25 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 147.6 MB in the beginning and 93.2 MB in the end (delta: 54.5 MB). Peak memory consumption was 89.3 MB. Max. memory is 8.0 GB. [2020-12-21 23:14:31,245 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 173.0 MB. Free memory is still 146.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:14:31,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.67 ms. Allocated memory is still 173.0 MB. Free memory was 147.4 MB in the beginning and 134.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-21 23:14:31,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.37 ms. Allocated memory is still 173.0 MB. Free memory was 134.0 MB in the beginning and 131.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:14:31,247 INFO L168 Benchmark]: Boogie Preprocessor took 50.74 ms. Allocated memory is still 173.0 MB. Free memory was 131.7 MB in the beginning and 130.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:14:31,248 INFO L168 Benchmark]: RCFGBuilder took 862.67 ms. Allocated memory is still 173.0 MB. Free memory was 130.0 MB in the beginning and 133.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-21 23:14:31,249 INFO L168 Benchmark]: TraceAbstraction took 3195.38 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 132.7 MB in the beginning and 93.2 MB in the end (delta: 39.5 MB). Peak memory consumption was 74.6 MB. Max. memory is 8.0 GB. [2020-12-21 23:14:31,249 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 207.6 MB. Free memory is still 93.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:14:31,254 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 173.0 MB. Free memory is still 146.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 383.67 ms. Allocated memory is still 173.0 MB. Free memory was 147.4 MB in the beginning and 134.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 61.37 ms. Allocated memory is still 173.0 MB. Free memory was 134.0 MB in the beginning and 131.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.74 ms. Allocated memory is still 173.0 MB. Free memory was 131.7 MB in the beginning and 130.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 862.67 ms. Allocated memory is still 173.0 MB. Free memory was 130.0 MB in the beginning and 133.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3195.38 ms. Allocated memory was 173.0 MB in the beginning and 207.6 MB in the end (delta: 34.6 MB). Free memory was 132.7 MB in the beginning and 93.2 MB in the end (delta: 39.5 MB). Peak memory consumption was 74.6 MB. Max. memory is 8.0 GB. * Witness Printer took 4.76 ms. Allocated memory is still 207.6 MB. Free memory is still 93.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 103, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L219] unsigned int a ; [L220] unsigned int ma = __VERIFIER_nondet_uint(); [L221] signed char ea = __VERIFIER_nondet_char(); [L222] unsigned int b ; [L223] unsigned int mb = __VERIFIER_nondet_uint(); [L224] signed char eb = __VERIFIER_nondet_char(); [L225] unsigned int r_add ; [L226] unsigned int zero ; [L227] int sa ; [L228] int sb ; [L229] int tmp ; [L230] int tmp___0 ; [L231] int tmp___1 ; [L232] int tmp___2 ; [L233] int tmp___3 ; [L234] int tmp___4 ; [L235] int tmp___5 ; [L236] int tmp___6 ; [L237] int tmp___7 ; [L238] int tmp___8 ; [L239] int tmp___9 ; [L240] int __retres23 ; [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND TRUE ! m [L23] __retres4 = 0U [L73] return (__retres4); [L244] zero = base2flt(0, 0) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND TRUE m >= 1U << 25U [L57] COND TRUE e >= 127 [L58] __retres4 = 4294967295U [L73] return (__retres4); [L245] a = base2flt(ma, ea) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND FALSE !(m >= 1U << 25U) [L69] m = m & ~ (1U << 24U) [L70] res = m | ((unsigned int ) (e + 128) << 24U) [L71] __retres4 = res [L73] return (__retres4); [L246] b = base2flt(mb, eb) [L248] COND FALSE !(a < zero) [L251] COND TRUE a > zero [L252] tmp = 1 [L256] sa = tmp [L258] COND FALSE !(b < zero) [L261] COND TRUE b > zero [L262] tmp___0 = 1 [L266] sb = tmp___0 [L77] unsigned int res ; [L78] unsigned int ma ; [L79] unsigned int mb ; [L80] unsigned int delta ; [L81] int ea ; [L82] int eb ; [L83] unsigned int tmp ; [L84] unsigned int __retres10 ; [L87] COND FALSE !(a < b) [L94] COND FALSE !(! b) [L101] ma = a & ((1U << 24U) - 1U) [L102] ea = (int )(a >> 24U) - 128 [L103] ma = ma | (1U << 24U) [L104] mb = b & ((1U << 24U) - 1U) [L105] eb = (int )(b >> 24U) - 128 [L106] mb = mb | (1U << 24U) [L9] COND TRUE !(cond) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1025 SDtfs, 2507 SDslu, 3043 SDs, 0 SdLazy, 576 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=448occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 747 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 163 ConstructedInterpolants, 0 QuantifiedInterpolants, 10431 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...