./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d57b69a18e01217b153b00cc1c03d5a7a42828b ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d57b69a18e01217b153b00cc1c03d5a7a42828b ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:31:50,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:31:50,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:31:50,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:31:50,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:31:50,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:31:50,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:31:50,135 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:31:50,136 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:31:50,137 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:31:50,137 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:31:50,138 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:31:50,138 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:31:50,139 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:31:50,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:31:50,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:31:50,141 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:31:50,143 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:31:50,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:31:50,145 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:31:50,146 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:31:50,148 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:31:50,149 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:31:50,150 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:31:50,150 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:31:50,151 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:31:50,152 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:31:50,153 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:31:50,154 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:31:50,154 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:31:50,155 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:31:50,155 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:31:50,155 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:31:50,155 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:31:50,156 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:31:50,156 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:31:50,157 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 14:31:50,168 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:31:50,168 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:31:50,169 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:31:50,169 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:31:50,170 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:31:50,170 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:31:50,170 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:31:50,170 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:31:50,171 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:31:50,172 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:31:50,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:31:50,172 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:31:50,172 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:31:50,172 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:31:50,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:31:50,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:31:50,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:31:50,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:31:50,173 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:31:50,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:31:50,173 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:31:50,173 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:31:50,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:31:50,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:31:50,174 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer 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(__VERIFIER_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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-11-23 14:31:50,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:31:50,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:31:50,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:31:50,219 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:31:50,220 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:31:50,220 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-23 14:31:50,268 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/3d162a425/716a9b95405d4602addbee8f8170502b/FLAG05316e324 [2018-11-23 14:31:50,608 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:31:50,609 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-23 14:31:50,614 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/3d162a425/716a9b95405d4602addbee8f8170502b/FLAG05316e324 [2018-11-23 14:31:50,628 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/3d162a425/716a9b95405d4602addbee8f8170502b [2018-11-23 14:31:50,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:31:50,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:31:50,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:31:50,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:31:50,638 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:31:50,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735eaee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50, skipping insertion in model container [2018-11-23 14:31:50,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:31:50,668 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:31:50,793 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:31:50,797 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:31:50,807 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:31:50,816 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:31:50,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50 WrapperNode [2018-11-23 14:31:50,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:31:50,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:31:50,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:31:50,817 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:31:50,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:31:50,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:31:50,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:31:50,832 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:31:50,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... [2018-11-23 14:31:50,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:31:50,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:31:50,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:31:50,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:31:50,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/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 [2018-11-23 14:31:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:31:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:31:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:31:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:31:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:31:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:31:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 14:31:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 14:31:51,038 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:31:51,038 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:31:51,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:51 BoogieIcfgContainer [2018-11-23 14:31:51,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:31:51,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:31:51,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:31:51,043 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:31:51,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:50" (1/3) ... [2018-11-23 14:31:51,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4782e8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:51, skipping insertion in model container [2018-11-23 14:31:51,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:50" (2/3) ... [2018-11-23 14:31:51,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4782e8bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:51, skipping insertion in model container [2018-11-23 14:31:51,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:51" (3/3) ... [2018-11-23 14:31:51,046 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-11-23 14:31:51,053 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:31:51,058 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:31:51,069 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:31:51,090 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:31:51,091 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:31:51,091 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:31:51,091 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:31:51,091 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:31:51,091 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:31:51,091 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:31:51,091 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:31:51,091 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:31:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 14:31:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:31:51,114 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:31:51,115 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:31:51,116 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:31:51,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:51,120 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-11-23 14:31:51,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:31:51,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:31:51,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:51,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:51,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:31:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:31:51,210 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #32#return; [?] CALL call #t~ret0 := main(); [?] havoc ~x~0;havoc ~y~0;havoc ~z~0;~x~0 := 1.0;~y~0 := 1.0E7;~z~0 := 42.0; VAL [main_~x~0=1.0, main_~y~0=10000000.0, main_~z~0=42.0] [?] assume !~someBinaryFLOATComparisonOperation(~x~0, ~y~0); VAL [main_~x~0=1.0, main_~y~0=10000000.0, main_~z~0=42.0] [?] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] havoc ~x~0; [L6] havoc ~y~0; [L6] havoc ~z~0; [L8] ~x~0 := 1.0; [L9] ~y~0 := 1.0E7; [L10] ~z~0 := 42.0; VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L12-L16] assume !~someBinaryFLOATComparisonOperation(~x~0, ~y~0); VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] havoc ~x~0; [L6] havoc ~y~0; [L6] havoc ~z~0; [L8] ~x~0 := 1.0; [L9] ~y~0 := 1.0E7; [L10] ~z~0 := 42.0; VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L12-L16] assume !~someBinaryFLOATComparisonOperation(~x~0, ~y~0); VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] havoc ~x~0; [L6] havoc ~y~0; [L6] havoc ~z~0; [L8] ~x~0 := 1.0; [L9] ~y~0 := 1.0E7; [L10] ~z~0 := 42.0; VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L12-L16] COND TRUE !~someBinaryFLOATComparisonOperation(~x~0, ~y~0) VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] havoc ~x~0; [L6] havoc ~y~0; [L6] havoc ~z~0; [L8] ~x~0 := 1.0; [L9] ~y~0 := 1.0E7; [L10] ~z~0 := 42.0; VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L12-L16] COND TRUE !~someBinaryFLOATComparisonOperation(~x~0, ~y~0) VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] havoc ~x~0; [L6] havoc ~y~0; [L6] havoc ~z~0; [L8] ~x~0 := 1.0; [L9] ~y~0 := 1.0E7; [L10] ~z~0 := 42.0; VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L12-L16] COND TRUE !~someBinaryFLOATComparisonOperation(~x~0, ~y~0) VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] havoc ~x~0; [L6] havoc ~y~0; [L6] havoc ~z~0; [L8] ~x~0 := 1.0; [L9] ~y~0 := 1.0E7; [L10] ~z~0 := 42.0; VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L12-L16] COND TRUE !~someBinaryFLOATComparisonOperation(~x~0, ~y~0) VAL [~x~0=1.0, ~y~0=1.0E7, ~z~0=42.0] [L18] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~z~0, 0.0) && ~someBinaryDOUBLEComparisonOperation(~z~0, 1.0E8) then 1 else 0)); VAL [#in~cond=0] [L2] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L2] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L2] assert false; VAL [#in~cond=0, ~cond=0] [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f VAL [x=1, y=10000000, z=42] [L12] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L18] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 14:31:51,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:31:51 BoogieIcfgContainer [2018-11-23 14:31:51,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:31:51,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:31:51,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:31:51,240 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:31:51,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:51" (3/4) ... [2018-11-23 14:31:51,244 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 14:31:51,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:31:51,245 INFO L168 Benchmark]: Toolchain (without parser) took 612.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:31:51,246 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:31:51,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.22 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:51,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.54 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:31:51,247 INFO L168 Benchmark]: Boogie Preprocessor took 15.04 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:51,248 INFO L168 Benchmark]: RCFGBuilder took 191.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:51,249 INFO L168 Benchmark]: TraceAbstraction took 199.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:31:51,249 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:31:51,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.22 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.54 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.04 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 199.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12. Possible FailurePath: [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f VAL [x=1, y=10000000, z=42] [L12] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L18] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) VAL [\old(cond)=0] [L2] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L2] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-aa41828 [2018-11-23 14:31:52,884 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:31:52,885 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:31:52,894 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:31:52,895 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:31:52,895 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:31:52,896 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:31:52,897 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:31:52,899 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:31:52,900 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:31:52,900 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:31:52,901 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:31:52,901 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:31:52,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:31:52,904 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:31:52,904 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:31:52,905 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:31:52,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:31:52,908 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:31:52,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:31:52,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:31:52,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:31:52,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:31:52,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:31:52,914 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:31:52,914 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:31:52,916 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:31:52,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:31:52,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:31:52,918 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:31:52,918 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:31:52,918 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:31:52,919 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:31:52,919 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:31:52,920 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:31:52,921 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:31:52,921 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 14:31:52,933 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:31:52,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:31:52,934 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:31:52,934 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:31:52,934 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:31:52,934 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:31:52,934 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:31:52,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:31:52,935 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 14:31:52,936 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:31:52,937 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:31:52,937 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:31:52,937 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:31:52,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:31:52,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:31:52,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:31:52,937 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:31:52,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 14:31:52,938 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer 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(__VERIFIER_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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-11-23 14:31:52,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:31:52,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:31:52,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:31:52,983 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:31:52,983 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:31:52,984 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-23 14:31:53,027 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/b9808c3ab/e04d3740b7144eba929a5b8fc4ea225d/FLAG9b48c8202 [2018-11-23 14:31:53,367 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:31:53,367 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/sv-benchmarks/c/float-benchs/loop_true-unreach-call.c [2018-11-23 14:31:53,371 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/b9808c3ab/e04d3740b7144eba929a5b8fc4ea225d/FLAG9b48c8202 [2018-11-23 14:31:53,800 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/data/b9808c3ab/e04d3740b7144eba929a5b8fc4ea225d [2018-11-23 14:31:53,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:31:53,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:31:53,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:31:53,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:31:53,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:31:53,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:53" (1/1) ... [2018-11-23 14:31:53,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d48da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:53, skipping insertion in model container [2018-11-23 14:31:53,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:53" (1/1) ... [2018-11-23 14:31:53,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:31:53,839 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:31:53,976 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:31:53,982 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:31:53,997 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:31:54,007 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:31:54,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54 WrapperNode [2018-11-23 14:31:54,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:31:54,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:31:54,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:31:54,008 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:31:54,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:31:54,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:31:54,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:31:54,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:31:54,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... [2018-11-23 14:31:54,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:31:54,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:31:54,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:31:54,050 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:31:54,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/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 [2018-11-23 14:31:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:31:54,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:31:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:31:54,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:31:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:31:54,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:31:54,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 14:31:54,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 14:31:54,837 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:31:54,837 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:31:54,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:54 BoogieIcfgContainer [2018-11-23 14:31:54,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:31:54,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:31:54,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:31:54,841 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:31:54,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:53" (1/3) ... [2018-11-23 14:31:54,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f3718c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:54, skipping insertion in model container [2018-11-23 14:31:54,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:54" (2/3) ... [2018-11-23 14:31:54,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f3718c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:54, skipping insertion in model container [2018-11-23 14:31:54,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:54" (3/3) ... [2018-11-23 14:31:54,844 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-11-23 14:31:54,851 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:31:54,856 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:31:54,868 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:31:54,893 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:31:54,894 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:31:54,894 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:31:54,894 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:31:54,894 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:31:54,894 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:31:54,895 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:31:54,895 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:31:54,895 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:31:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 14:31:54,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:31:54,915 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:31:54,916 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:31:54,918 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:31:54,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:54,922 INFO L82 PathProgramCache]: Analyzing trace with hash -14991171, now seen corresponding path program 1 times [2018-11-23 14:31:54,925 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 14:31:54,926 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/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 [2018-11-23 14:31:54,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:54,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:31:55,010 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 14:31:55,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:31:55,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:31:55,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:31:55,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:31:55,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:31:55,039 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-11-23 14:31:55,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:31:55,393 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-23 14:31:55,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:31:55,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:31:55,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:31:55,401 INFO L225 Difference]: With dead ends: 31 [2018-11-23 14:31:55,401 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 14:31:55,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:31:55,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 14:31:55,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 14:31:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 14:31:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-23 14:31:55,432 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-23 14:31:55,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:31:55,432 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-23 14:31:55,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:31:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 14:31:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 14:31:55,433 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:31:55,433 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:31:55,434 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:31:55,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:31:55,434 INFO L82 PathProgramCache]: Analyzing trace with hash -429188558, now seen corresponding path program 1 times [2018-11-23 14:31:55,434 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 14:31:55,434 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 14:31:55,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:31:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:31:55,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:31:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:31:55,572 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:31:59,378 WARN L180 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-23 14:31:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:31:59,398 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:31:59,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-23 14:31:59,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:31:59,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:31:59,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2018-11-23 14:31:59,400 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 6 states. [2018-11-23 14:32:07,872 WARN L180 SmtUtils]: Spent 3.56 s on a formula simplification that was a NOOP. DAG size: 10 [2018-11-23 14:32:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:32:10,420 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-23 14:32:10,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:32:10,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-23 14:32:10,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:32:10,428 INFO L225 Difference]: With dead ends: 20 [2018-11-23 14:32:10,428 INFO L226 Difference]: Without dead ends: 15 [2018-11-23 14:32:10,429 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=19, Invalid=21, Unknown=2, NotChecked=0, Total=42 [2018-11-23 14:32:10,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-23 14:32:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-23 14:32:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 14:32:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-23 14:32:10,434 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-11-23 14:32:10,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:32:10,434 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-23 14:32:10,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:32:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-23 14:32:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 14:32:10,435 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:32:10,435 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:32:10,435 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:32:10,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:32:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1090549245, now seen corresponding path program 2 times [2018-11-23 14:32:10,436 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 14:32:10,436 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 14:32:10,445 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 14:32:10,730 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 14:32:10,730 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:32:10,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:32:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:32:10,900 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:32:12,069 WARN L180 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-23 14:32:19,714 WARN L180 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-23 14:32:39,706 WARN L180 SmtUtils]: Spent 4.33 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-23 14:33:18,874 WARN L180 SmtUtils]: Spent 8.07 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-23 14:33:22,477 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from true [2018-11-23 14:33:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 5 times theorem prover too weak. 0 trivial. 4 not checked. [2018-11-23 14:33:22,499 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:33:22,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-11-23 14:33:22,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 14:33:22,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 14:33:22,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=153, Unknown=9, NotChecked=26, Total=240 [2018-11-23 14:33:22,500 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 16 states. [2018-11-23 14:33:32,998 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (let ((.cse2 (fp.add roundNearestTiesToEven c_main_~z~0 .cse3))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (.cse0 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse2 .cse3) .cse3))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) .cse1) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven c_main_~z~0) .cse1) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse2) .cse1) (fp.geq .cse0 (_ +zero 8 24)) (fp.geq .cse2 (_ +zero 8 24)) (fp.geq c_main_~z~0 (_ +zero 8 24)))))) is different from false [2018-11-23 14:33:45,623 WARN L180 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-11-23 14:33:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:33:56,450 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-23 14:33:56,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 14:33:56,483 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2018-11-23 14:33:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:33:56,484 INFO L225 Difference]: With dead ends: 19 [2018-11-23 14:33:56,484 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:33:56,484 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 91.1s TimeCoverageRelationStatistics Valid=70, Invalid=198, Unknown=12, NotChecked=62, Total=342 [2018-11-23 14:33:56,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:33:56,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:33:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:33:56,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:33:56,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 14:33:56,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:33:56,485 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:33:56,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 14:33:56,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:33:56,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:33:56,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:34:07,433 WARN L180 SmtUtils]: Spent 10.89 s on a formula simplification. DAG size of input: 23 DAG size of output: 9 [2018-11-23 14:34:17,569 WARN L180 SmtUtils]: Spent 10.14 s on a formula simplification. DAG size of input: 43 DAG size of output: 12 [2018-11-23 14:34:17,571 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 14:34:17,571 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:34:17,571 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:34:17,572 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:34:17,572 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:34:17,572 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:34:17,572 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 20) the Hoare annotation is: true [2018-11-23 14:34:17,572 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 20) no Hoare annotation was computed. [2018-11-23 14:34:17,572 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-23 14:34:17,572 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4 20) no Hoare annotation was computed. [2018-11-23 14:34:17,572 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven main_~z~0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-11-23 14:34:17,572 INFO L444 ceAbstractionStarter]: At program point L12-3(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven main_~z~0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq main_~z~0 (_ +zero 8 24))) [2018-11-23 14:34:17,573 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-11-23 14:34:17,573 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-11-23 14:34:17,573 INFO L448 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2018-11-23 14:34:17,573 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2018-11-23 14:34:17,573 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2018-11-23 14:34:17,573 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-11-23 14:34:17,579 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,580 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,580 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,580 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,583 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,583 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,583 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,584 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:34:17 BoogieIcfgContainer [2018-11-23 14:34:17,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:34:17,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:34:17,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:34:17,586 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:34:17,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:54" (3/4) ... [2018-11-23 14:34:17,590 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:34:17,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:34:17,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:34:17,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 14:34:17,598 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 14:34:17,599 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:34:17,599 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:34:17,630 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7ffccb07-79dc-4fbf-93ce-f9c9f9252889/bin-2019/uautomizer/witness.graphml [2018-11-23 14:34:17,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:34:17,631 INFO L168 Benchmark]: Toolchain (without parser) took 143827.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 949.7 MB in the beginning and 997.6 MB in the end (delta: -47.8 MB). Peak memory consumption was 80.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:17,631 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:34:17,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.01 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:17,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.36 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:17,633 INFO L168 Benchmark]: Boogie Preprocessor took 19.28 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:34:17,633 INFO L168 Benchmark]: RCFGBuilder took 787.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:17,634 INFO L168 Benchmark]: TraceAbstraction took 142747.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:17,634 INFO L168 Benchmark]: Witness Printer took 44.27 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:34:17,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.01 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.36 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.28 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 787.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 142747.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 11.5 GB. * Witness Printer took 44.27 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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 - InvariantResult [Line: 12]: Loop Invariant [2018-11-23 14:34:17,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,640 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-23 14:34:17,641 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.leq~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.add~FLOAT(~roundNearestTiesToEven, z, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E8)) && ~fp.geq~FLOAT(z, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 142.6s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 45.3s AutomataDifference, 0.0s DeadEndRemovalTime, 21.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 5 SDslu, 97 SDs, 0 SdLazy, 62 SolverSat, 11 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 102.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 32 HoareAnnotationTreeSize, 11 FomulaSimplifications, 71 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 175 FormulaSimplificationTreeSizeReductionInter, 21.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 75.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 4691 SizeOfPredicates, 6 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...