./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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-simp3.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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ............................................................................................................................................................................................................................. 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_1.3.100.v20150511-1540.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-simp3.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 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:15:16,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:16,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:16,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:16,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:16,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:16,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:16,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:16,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:16,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:16,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:16,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:16,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:16,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:16,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:16,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:16,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:16,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:16,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:16,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:16,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:16,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:16,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:16,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:16,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:16,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:16,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:16,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:16,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:16,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:16,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:16,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:16,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:16,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:16,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:16,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:16,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:16,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:16,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:16,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:16,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:16,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:15:16,197 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:16,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:16,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:16,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:16,199 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:16,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:16,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:16,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:15:16,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:16,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:16,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:16,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:16,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:16,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:16,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:16,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:16,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:16,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:16,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:16,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:16,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:16,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:16,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:16,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:16,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:16,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:15:16,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:15:16,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:16,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:16,206 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-10-20 00:15:16,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:16,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:16,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:16,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:16,435 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:16,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-20 00:15:16,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb885317/e79a50ad0ed44df7aa4c313343369c03/FLAGb10679a38 [2020-10-20 00:15:17,052 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:17,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-20 00:15:17,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb885317/e79a50ad0ed44df7aa4c313343369c03/FLAGb10679a38 [2020-10-20 00:15:17,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb885317/e79a50ad0ed44df7aa4c313343369c03 [2020-10-20 00:15:17,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:17,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:17,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:17,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:17,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:17,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55acc1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17, skipping insertion in model container [2020-10-20 00:15:17,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:17,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:17,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:17,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:17,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:17,593 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:17,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17 WrapperNode [2020-10-20 00:15:17,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:17,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:17,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:17,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:17,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:17,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:17,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:17,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:17,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (1/1) ... [2020-10-20 00:15:17,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:17,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:17,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:17,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:17,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (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 [2020-10-20 00:15:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:17,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:15:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:17,933 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:17,934 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 00:15:17,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:17 BoogieIcfgContainer [2020-10-20 00:15:17,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:17,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:17,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:17,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:17,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:17" (1/3) ... [2020-10-20 00:15:17,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae3f770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:17, skipping insertion in model container [2020-10-20 00:15:17,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:17" (2/3) ... [2020-10-20 00:15:17,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae3f770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:17, skipping insertion in model container [2020-10-20 00:15:17,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:17" (3/3) ... [2020-10-20 00:15:17,946 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-10-20 00:15:17,971 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:17,979 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:15:18,000 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:15:18,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:18,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:18,033 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:18,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:18,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:18,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:18,034 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:18,034 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-20 00:15:18,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:18,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:18,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:18,074 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:18,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:18,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:15:18,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262816504] [2020-10-20 00:15:18,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:15:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:18,204 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:15:18,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:15:18,244 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:15:18,246 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:15:18,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:15:18,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:18 BoogieIcfgContainer [2020-10-20 00:15:18,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:18,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:18,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:18,272 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:18,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:17" (3/4) ... [2020-10-20 00:15:18,277 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:15:18,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:18,281 INFO L168 Benchmark]: Toolchain (without parser) took 982.71 ms. Allocated memory was 42.5 MB in the beginning and 45.6 MB in the end (delta: 3.1 MB). Free memory was 22.6 MB in the beginning and 15.4 MB in the end (delta: 7.2 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,283 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 32.0 MB. Free memory was 9.8 MB in the beginning and 9.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.45 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 21.8 MB in the beginning and 24.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.26 ms. Allocated memory is still 43.0 MB. Free memory was 24.2 MB in the beginning and 22.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,286 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 43.0 MB. Free memory was 22.7 MB in the beginning and 21.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,287 INFO L168 Benchmark]: RCFGBuilder took 275.51 ms. Allocated memory is still 43.0 MB. Free memory was 21.5 MB in the beginning and 11.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,288 INFO L168 Benchmark]: TraceAbstraction took 334.51 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 10.7 MB in the beginning and 15.9 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:15:18,289 INFO L168 Benchmark]: Witness Printer took 5.93 ms. Allocated memory is still 45.6 MB. Free memory was 15.9 MB in the beginning and 15.4 MB in the end (delta: 479.5 kB). Peak memory consumption was 479.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:18,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 32.0 MB. Free memory was 9.8 MB in the beginning and 9.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 291.45 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 21.8 MB in the beginning and 24.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 41.26 ms. Allocated memory is still 43.0 MB. Free memory was 24.2 MB in the beginning and 22.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 43.0 MB. Free memory was 22.7 MB in the beginning and 21.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 275.51 ms. Allocated memory is still 43.0 MB. Free memory was 21.5 MB in the beginning and 11.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 334.51 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 10.7 MB in the beginning and 15.9 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.93 ms. Allocated memory is still 45.6 MB. Free memory was 15.9 MB in the beginning and 15.4 MB in the end (delta: 479.5 kB). Peak memory consumption was 479.5 kB. Max. memory is 14.3 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 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L3] __assert_fail("0", "float-no-simp3.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 0.1.25-9a8b2e8 [2020-10-20 00:15:20,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:15:20,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:15:20,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:15:20,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:15:20,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:15:20,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:15:20,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:15:20,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:15:20,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:15:20,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:15:20,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:15:20,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:15:20,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:15:20,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:15:20,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:15:20,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:15:20,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:15:20,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:15:20,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:15:20,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:15:20,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:15:20,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:15:20,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:15:20,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:15:20,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:15:20,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:15:20,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:15:20,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:15:20,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:15:20,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:15:20,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:15:20,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:15:20,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:15:20,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:15:20,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:15:20,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:15:20,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:15:20,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:15:20,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:15:20,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:15:20,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:15:20,699 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:15:20,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:15:20,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:15:20,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:15:20,703 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:15:20,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:15:20,703 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:15:20,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:15:20,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:15:20,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:15:20,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:15:20,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:15:20,705 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:15:20,706 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:15:20,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:15:20,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:15:20,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:15:20,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:15:20,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:15:20,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:15:20,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:15:20,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:15:20,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:15:20,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:15:20,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:15:20,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:15:20,709 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:15:20,710 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:15:20,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:15:20,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:15:20,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:15:20,711 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-10-20 00:15:20,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:15:20,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:15:20,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:15:20,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:15:20,970 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:15:20,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-20 00:15:21,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70c092b44/13924c782d5b4912b664b28d43e4ef29/FLAG23227c786 [2020-10-20 00:15:21,595 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:15:21,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-10-20 00:15:21,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70c092b44/13924c782d5b4912b664b28d43e4ef29/FLAG23227c786 [2020-10-20 00:15:21,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70c092b44/13924c782d5b4912b664b28d43e4ef29 [2020-10-20 00:15:21,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:15:21,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:15:21,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:21,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:15:22,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:15:22,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:21" (1/1) ... [2020-10-20 00:15:22,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff068b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22, skipping insertion in model container [2020-10-20 00:15:22,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:15:21" (1/1) ... [2020-10-20 00:15:22,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:15:22,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:15:22,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:22,224 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:15:22,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:15:22,257 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:15:22,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22 WrapperNode [2020-10-20 00:15:22,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:15:22,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:22,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:15:22,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:15:22,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:15:22,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:15:22,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:15:22,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:15:22,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (1/1) ... [2020-10-20 00:15:22,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:15:22,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:15:22,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:15:22,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:15:22,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (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 [2020-10-20 00:15:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:15:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:15:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:15:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:15:22,650 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:15:22,650 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 00:15:22,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:22 BoogieIcfgContainer [2020-10-20 00:15:22,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:15:22,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:15:22,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:15:22,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:15:22,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:15:21" (1/3) ... [2020-10-20 00:15:22,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f37e53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:22, skipping insertion in model container [2020-10-20 00:15:22,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:15:22" (2/3) ... [2020-10-20 00:15:22,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f37e53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:15:22, skipping insertion in model container [2020-10-20 00:15:22,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:22" (3/3) ... [2020-10-20 00:15:22,686 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-10-20 00:15:22,709 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:15:22,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:15:22,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:15:22,765 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:15:22,766 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:15:22,766 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:15:22,766 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:15:22,767 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:15:22,767 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:15:22,767 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:15:22,767 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:15:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-10-20 00:15:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:15:22,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:15:22,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:15:22,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:15:22,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:15:22,800 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-10-20 00:15:22,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:15:22,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440954904] [2020-10-20 00:15:22,815 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 [2020-10-20 00:15:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:15:22,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 00:15:22,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:15:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:22,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:15:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:15:23,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440954904] [2020-10-20 00:15:23,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:15:23,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:15:23,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001408384] [2020-10-20 00:15:23,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:15:23,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:15:23,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:15:23,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:15:23,508 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-10-20 00:15:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:15:23,589 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-10-20 00:15:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:15:23,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-20 00:15:23,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:15:23,602 INFO L225 Difference]: With dead ends: 12 [2020-10-20 00:15:23,603 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:15:23,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:15:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:15:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:15:23,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:15:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:15:23,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-20 00:15:23,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:15:23,629 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:15:23,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:15:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:15:23,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:15:23,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:15:23,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-10-20 00:15:23,843 INFO L274 CegarLoopResult]: For program point L5(lines 5 11) no Hoare annotation was computed. [2020-10-20 00:15:23,850 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:15:23,850 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:15:23,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:15:23 BoogieIcfgContainer [2020-10-20 00:15:23,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:15:23,857 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:15:23,857 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:15:23,857 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:15:23,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:15:22" (3/4) ... [2020-10-20 00:15:23,860 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:15:23,871 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 00:15:23,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 00:15:23,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 00:15:23,872 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:15:23,908 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:15:23,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:15:23,911 INFO L168 Benchmark]: Toolchain (without parser) took 1922.21 ms. Allocated memory was 41.4 MB in the beginning and 46.1 MB in the end (delta: 4.7 MB). Free memory was 19.6 MB in the beginning and 24.8 MB in the end (delta: -5.3 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:15:23,912 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 44.1 kB). Peak memory consumption was 44.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.32 ms. Allocated memory was 41.4 MB in the beginning and 42.5 MB in the end (delta: 1.0 MB). Free memory was 18.6 MB in the beginning and 18.7 MB in the end (delta: -56.3 kB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.65 ms. Allocated memory is still 42.5 MB. Free memory was 18.7 MB in the beginning and 17.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,914 INFO L168 Benchmark]: Boogie Preprocessor took 24.80 ms. Allocated memory is still 42.5 MB. Free memory was 17.0 MB in the beginning and 15.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,916 INFO L168 Benchmark]: RCFGBuilder took 332.98 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 15.7 MB in the beginning and 20.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,917 INFO L168 Benchmark]: TraceAbstraction took 1185.78 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 20.0 MB in the beginning and 27.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,917 INFO L168 Benchmark]: Witness Printer took 52.09 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 24.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:15:23,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 44.1 kB). Peak memory consumption was 44.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 262.32 ms. Allocated memory was 41.4 MB in the beginning and 42.5 MB in the end (delta: 1.0 MB). Free memory was 18.6 MB in the beginning and 18.7 MB in the end (delta: -56.3 kB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 36.65 ms. Allocated memory is still 42.5 MB. Free memory was 18.7 MB in the beginning and 17.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 24.80 ms. Allocated memory is still 42.5 MB. Free memory was 17.0 MB in the beginning and 15.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 332.98 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 15.7 MB in the beginning and 20.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1185.78 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 20.0 MB in the beginning and 27.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Witness Printer took 52.09 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 24.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s 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, 0.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 3 NumberOfNonLiveVariables, 26 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...