./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:54:37,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:54:37,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:54:37,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:54:37,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:54:37,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:54:37,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:54:37,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:54:37,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:54:37,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:54:37,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:54:37,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:54:38,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:54:38,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:54:38,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:54:38,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:54:38,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:54:38,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:54:38,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:54:38,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:54:38,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:54:38,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:54:38,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:54:38,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:54:38,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:54:38,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:54:38,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:54:38,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:54:38,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:54:38,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:54:38,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:54:38,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:54:38,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:54:38,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:54:38,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:54:38,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:54:38,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:54:38,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:54:38,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:54:38,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:54:38,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:54:38,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:54:38,112 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:54:38,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:54:38,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:54:38,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:54:38,116 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:54:38,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:54:38,117 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:54:38,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:54:38,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:54:38,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:54:38,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:54:38,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:54:38,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:54:38,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:54:38,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:54:38,121 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:54:38,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:54:38,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:54:38,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:54:38,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:54:38,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:54:38,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:54:38,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:54:38,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:54:38,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:54:38,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:54:38,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:54:38,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:54:38,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:54:38,125 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-10-24 21:54:38,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:54:38,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:54:38,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:54:38,672 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:54:38,674 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:54:38,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-24 21:54:38,766 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2c4a112/77effd38d4b045e9bacc43063a4c3a07/FLAG8ab8735d6 [2020-10-24 21:54:39,441 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:54:39,441 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-24 21:54:39,449 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2c4a112/77effd38d4b045e9bacc43063a4c3a07/FLAG8ab8735d6 [2020-10-24 21:54:39,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc2c4a112/77effd38d4b045e9bacc43063a4c3a07 [2020-10-24 21:54:39,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:54:39,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:54:39,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:54:39,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:54:39,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:54:39,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:39" (1/1) ... [2020-10-24 21:54:39,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c65249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:39, skipping insertion in model container [2020-10-24 21:54:39,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:39" (1/1) ... [2020-10-24 21:54:39,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:54:39,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:54:40,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:54:40,186 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:54:40,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:54:40,223 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:54:40,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40 WrapperNode [2020-10-24 21:54:40,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:54:40,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:54:40,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:54:40,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:54:40,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:54:40,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:54:40,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:54:40,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:54:40,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (1/1) ... [2020-10-24 21:54:40,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:54:40,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:54:40,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:54:40,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:54:40,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (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 [2020-10-24 21:54:40,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:54:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:54:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 21:54:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:54:40,568 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:54:40,569 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 21:54:40,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:40 BoogieIcfgContainer [2020-10-24 21:54:40,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:54:40,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:54:40,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:54:40,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:54:40,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:54:39" (1/3) ... [2020-10-24 21:54:40,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6beeb23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:40, skipping insertion in model container [2020-10-24 21:54:40,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:40" (2/3) ... [2020-10-24 21:54:40,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6beeb23a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:40, skipping insertion in model container [2020-10-24 21:54:40,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:40" (3/3) ... [2020-10-24 21:54:40,582 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-10-24 21:54:40,596 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:54:40,601 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 21:54:40,617 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 21:54:40,683 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:54:40,684 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:54:40,684 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:54:40,684 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:54:40,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:54:40,685 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:54:40,685 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:54:40,685 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:54:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-24 21:54:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 21:54:40,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:54:40,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 21:54:40,709 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:54:40,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:54:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 21:54:40,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 21:54:40,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096210236] [2020-10-24 21:54:40,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 21:54:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:54:40,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:54:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:54:40,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:54:40,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 21:54:40,899 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 21:54:40,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 21:54:40,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:54:40 BoogieIcfgContainer [2020-10-24 21:54:40,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:54:40,925 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:54:40,925 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:54:40,925 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:54:40,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:40" (3/4) ... [2020-10-24 21:54:40,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 21:54:40,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:54:40,934 INFO L168 Benchmark]: Toolchain (without parser) took 1085.29 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 26.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:40,935 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory is still 36.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:40,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.31 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 34.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:40,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.38 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 33.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:40,938 INFO L168 Benchmark]: Boogie Preprocessor took 20.80 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 32.3 MB in the end (delta: 897.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:40,939 INFO L168 Benchmark]: RCFGBuilder took 280.48 ms. Allocated memory is still 52.4 MB. Free memory was 32.3 MB in the beginning and 23.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:40,940 INFO L168 Benchmark]: TraceAbstraction took 350.56 ms. Allocated memory is still 52.4 MB. Free memory was 22.5 MB in the beginning and 26.9 MB in the end (delta: -4.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:40,941 INFO L168 Benchmark]: Witness Printer took 6.09 ms. Allocated memory is still 52.4 MB. Free memory was 26.9 MB in the beginning and 26.4 MB in the end (delta: 504.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:40,946 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory is still 36.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.31 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 34.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.38 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 33.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.80 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 32.3 MB in the end (delta: 897.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 280.48 ms. Allocated memory is still 52.4 MB. Free memory was 32.3 MB in the beginning and 23.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 350.56 ms. Allocated memory is still 52.4 MB. Free memory was 22.5 MB in the beginning and 26.9 MB in the end (delta: -4.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.09 ms. Allocated memory is still 52.4 MB. Free memory was 26.9 MB in the beginning and 26.4 MB in the end (delta: 504.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L3] __assert_fail("0", "float-no-simp1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=9occurred 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, 4 NumberOfCodeBlocks, 4 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:54:43,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:54:43,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:54:43,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:54:43,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:54:43,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:54:43,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:54:43,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:54:43,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:54:43,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:54:43,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:54:43,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:54:43,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:54:43,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:54:43,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:54:43,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:54:43,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:54:43,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:54:43,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:54:43,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:54:43,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:54:43,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:54:43,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:54:43,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:54:43,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:54:43,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:54:43,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:54:43,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:54:43,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:54:43,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:54:43,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:54:43,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:54:43,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:54:43,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:54:43,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:54:43,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:54:43,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:54:43,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:54:43,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:54:43,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:54:43,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:54:43,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:54:44,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:54:44,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:54:44,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:54:44,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:54:44,009 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:54:44,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:54:44,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:54:44,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:54:44,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:54:44,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:54:44,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:54:44,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:54:44,013 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:54:44,013 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:54:44,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:54:44,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:54:44,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:54:44,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:54:44,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:54:44,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:54:44,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:54:44,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:54:44,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:54:44,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:54:44,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:54:44,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:54:44,017 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:54:44,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:54:44,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:54:44,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:54:44,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:54:44,018 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-10-24 21:54:44,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:54:44,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:54:44,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:54:44,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:54:44,470 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:54:44,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-24 21:54:44,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40028539a/896cb3a290154a5aac0e6c88af6246c4/FLAGc8e31da75 [2020-10-24 21:54:45,124 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:54:45,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-10-24 21:54:45,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40028539a/896cb3a290154a5aac0e6c88af6246c4/FLAGc8e31da75 [2020-10-24 21:54:45,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40028539a/896cb3a290154a5aac0e6c88af6246c4 [2020-10-24 21:54:45,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:54:45,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:54:45,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:54:45,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:54:45,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:54:45,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30892289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45, skipping insertion in model container [2020-10-24 21:54:45,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:54:45,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:54:45,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:54:45,763 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:54:45,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:54:45,801 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:54:45,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45 WrapperNode [2020-10-24 21:54:45,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:54:45,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:54:45,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:54:45,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:54:45,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:54:45,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:54:45,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:54:45,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:54:45,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (1/1) ... [2020-10-24 21:54:45,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:54:45,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:54:45,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:54:45,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:54:45,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (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 [2020-10-24 21:54:45,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:54:45,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:54:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:54:45,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:54:46,401 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:54:46,401 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 21:54:46,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:46 BoogieIcfgContainer [2020-10-24 21:54:46,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:54:46,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:54:46,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:54:46,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:54:46,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:54:45" (1/3) ... [2020-10-24 21:54:46,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d29037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:46, skipping insertion in model container [2020-10-24 21:54:46,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:45" (2/3) ... [2020-10-24 21:54:46,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d29037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:46, skipping insertion in model container [2020-10-24 21:54:46,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:46" (3/3) ... [2020-10-24 21:54:46,448 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-10-24 21:54:46,478 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:54:46,493 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 21:54:46,527 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 21:54:46,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:54:46,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:54:46,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:54:46,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:54:46,577 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:54:46,577 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:54:46,577 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:54:46,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:54:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-24 21:54:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 21:54:46,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:54:46,603 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 21:54:46,603 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:54:46,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:54:46,613 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-24 21:54:46,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:54:46,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308613896] [2020-10-24 21:54:46,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 21:54:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:54:46,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 21:54:46,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:54:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:54:46,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:54:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:54:46,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308613896] [2020-10-24 21:54:46,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:54:46,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 21:54:46,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447406264] [2020-10-24 21:54:46,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 21:54:46,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:54:47,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 21:54:47,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:54:47,013 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-10-24 21:54:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:54:47,056 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-24 21:54:47,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 21:54:47,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-24 21:54:47,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:54:47,068 INFO L225 Difference]: With dead ends: 12 [2020-10-24 21:54:47,069 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:54:47,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-10-24 21:54:47,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:54:47,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:54:47,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:54:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:54:47,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-24 21:54:47,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:54:47,105 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:54:47,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 21:54:47,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:54:47,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:54:47,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:54:47,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:54:47,314 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:54:47,314 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point L4(lines 4 13) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 21:54:47,315 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 21:54:47,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:54:47 BoogieIcfgContainer [2020-10-24 21:54:47,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:54:47,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:54:47,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:54:47,322 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:54:47,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:46" (3/4) ... [2020-10-24 21:54:47,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:54:47,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 21:54:47,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 21:54:47,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 21:54:47,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:54:47,377 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:54:47,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:54:47,381 INFO L168 Benchmark]: Toolchain (without parser) took 1868.96 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.4 MB in the beginning and 36.1 MB in the end (delta: -15.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:47,382 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:47,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.51 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.7 MB in the beginning and 29.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:47,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.81 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 28.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:54:47,384 INFO L168 Benchmark]: Boogie Preprocessor took 28.50 ms. Allocated memory is still 54.5 MB. Free memory was 28.5 MB in the beginning and 27.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:47,385 INFO L168 Benchmark]: RCFGBuilder took 539.37 ms. Allocated memory is still 54.5 MB. Free memory was 27.3 MB in the beginning and 30.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:47,386 INFO L168 Benchmark]: TraceAbstraction took 902.66 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 23.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:47,387 INFO L168 Benchmark]: Witness Printer took 55.75 ms. Allocated memory is still 54.5 MB. Free memory was 23.9 MB in the beginning and 36.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:54:47,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.51 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.7 MB in the beginning and 29.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.81 ms. Allocated memory is still 54.5 MB. Free memory was 29.9 MB in the beginning and 28.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.50 ms. Allocated memory is still 54.5 MB. Free memory was 28.5 MB in the beginning and 27.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 539.37 ms. Allocated memory is still 54.5 MB. Free memory was 27.3 MB in the beginning and 30.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 902.66 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 23.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 55.75 ms. Allocated memory is still 54.5 MB. Free memory was 23.9 MB in the beginning and 36.1 MB in the end (delta: -12.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be correct! Received shutdown request...