./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cf66c963cee9d423d7bbfded96bc288d1ae256e ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:57,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:57,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:57,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:57,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:57,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:57,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:57,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:57,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:57,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:57,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:57,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:57,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:57,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:57,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:57,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:57,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:57,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:57,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:57,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:57,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:57,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:57,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:57,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:57,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:57,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:57,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:57,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:57,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:57,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:57,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:57,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:57,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:57,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:57,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:57,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:57,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:57,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:57,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:57,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:57,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:57,179 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:08:57,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:57,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:57,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:57,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:57,224 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:57,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:57,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:57,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:57,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:57,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:57,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:57,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:57,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:57,226 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:57,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:57,226 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:57,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:57,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:57,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:57,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:57,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:57,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:57,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:57,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:57,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:57,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:57,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:57,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:57,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:57,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-11-28 03:08:57,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:57,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:57,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:57,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:57,533 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:57,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-28 03:08:57,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/057bf26bf/2e541680da564452b04b6b726830ed1d/FLAG6a02c984c [2020-11-28 03:08:58,135 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:58,136 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-28 03:08:58,142 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/057bf26bf/2e541680da564452b04b6b726830ed1d/FLAG6a02c984c [2020-11-28 03:08:58,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/057bf26bf/2e541680da564452b04b6b726830ed1d [2020-11-28 03:08:58,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:58,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:58,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:58,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:58,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:58,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cfd7cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58, skipping insertion in model container [2020-11-28 03:08:58,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:58,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:58,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:58,702 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:58,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:58,744 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:58,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58 WrapperNode [2020-11-28 03:08:58,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:58,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:58,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:58,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:58,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:58,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:58,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:58,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:58,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... [2020-11-28 03:08:58,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:58,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:58,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:58,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:58,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/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 [2020-11-28 03:08:58,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:58,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:58,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:59,039 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:59,039 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:08:59,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:59 BoogieIcfgContainer [2020-11-28 03:08:59,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:59,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:59,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:59,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:59,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:58" (1/3) ... [2020-11-28 03:08:59,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b5c822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:59, skipping insertion in model container [2020-11-28 03:08:59,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:58" (2/3) ... [2020-11-28 03:08:59,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b5c822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:59, skipping insertion in model container [2020-11-28 03:08:59,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:59" (3/3) ... [2020-11-28 03:08:59,059 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-11-28 03:08:59,083 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:59,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:59,102 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:59,128 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:59,128 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:59,129 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:59,129 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:59,129 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:59,129 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:59,129 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:59,129 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 03:08:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:59,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:59,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:59,151 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:59,157 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 03:08:59,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:59,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232459959] [2020-11-28 03:08:59,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:59,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:59,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:59,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:59,346 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:08:59,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:59,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:59 BoogieIcfgContainer [2020-11-28 03:08:59,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:59,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:59,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:59,369 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:59,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:59" (3/4) ... [2020-11-28 03:08:59,373 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:08:59,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:59,375 INFO L168 Benchmark]: Toolchain (without parser) took 879.98 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 51.3 MB in the end (delta: 21.9 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,376 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:59,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.28 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 75.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 98.6 MB. Free memory was 75.4 MB in the beginning and 73.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:59,379 INFO L168 Benchmark]: Boogie Preprocessor took 31.34 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 73.1 MB in the end (delta: 809.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,380 INFO L168 Benchmark]: RCFGBuilder took 217.89 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 63.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,380 INFO L168 Benchmark]: TraceAbstraction took 324.88 ms. Allocated memory is still 98.6 MB. Free memory was 63.2 MB in the beginning and 51.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:59,381 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 98.6 MB. Free memory was 51.5 MB in the beginning and 51.3 MB in the end (delta: 205.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:59,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 98.6 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.28 ms. Allocated memory is still 98.6 MB. Free memory was 73.0 MB in the beginning and 75.4 MB in the end (delta: -2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.06 ms. Allocated memory is still 98.6 MB. Free memory was 75.4 MB in the beginning and 73.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.34 ms. Allocated memory is still 98.6 MB. Free memory was 73.9 MB in the beginning and 73.1 MB in the end (delta: 809.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 217.89 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 63.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 324.88 ms. Allocated memory is still 98.6 MB. Free memory was 63.2 MB in the beginning and 51.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 98.6 MB. Free memory was 51.5 MB in the beginning and 51.3 MB in the end (delta: 205.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L3] __assert_fail("0", "float-no-simp1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:09:01,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:01,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:02,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:02,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:02,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:02,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:02,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:02,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:02,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:02,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:02,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:02,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:02,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:02,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:02,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:02,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:02,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:02,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:02,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:02,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:02,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:02,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:02,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:02,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:02,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:02,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:02,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:02,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:02,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:02,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:02,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:02,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:02,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:02,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:02,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:02,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:02,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:02,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:02,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:02,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:02,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:09:02,116 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:02,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:02,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:02,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:02,123 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:02,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:02,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:02,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:02,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:02,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:09:02,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:02,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:09:02,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:09:02,126 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:09:02,126 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:02,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:02,126 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:02,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:09:02,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:02,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:02,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:02,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:02,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:02,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:02,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:02,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:09:02,129 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:09:02,129 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:09:02,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:09:02,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:02,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:09:02,130 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-11-28 03:09:02,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:02,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:02,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:02,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:02,530 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:02,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-28 03:09:02,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/2fbf9fac4/4321dc2752494512ae49ac1791ba1622/FLAG729cb5804 [2020-11-28 03:09:03,166 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:03,168 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-28 03:09:03,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/2fbf9fac4/4321dc2752494512ae49ac1791ba1622/FLAG729cb5804 [2020-11-28 03:09:03,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/data/2fbf9fac4/4321dc2752494512ae49ac1791ba1622 [2020-11-28 03:09:03,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:03,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:03,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:03,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:03,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:03,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d308f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03, skipping insertion in model container [2020-11-28 03:09:03,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:03,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:03,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:03,769 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:03,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:03,807 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:03,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03 WrapperNode [2020-11-28 03:09:03,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:03,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:03,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:03,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:03,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:03,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:03,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:03,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:03,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... [2020-11-28 03:09:03,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:03,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:03,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:03,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:03,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/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 [2020-11-28 03:09:04,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:09:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:04,692 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:04,693 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:09:04,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:04 BoogieIcfgContainer [2020-11-28 03:09:04,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:04,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:04,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:04,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:04,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:03" (1/3) ... [2020-11-28 03:09:04,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf381d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:04, skipping insertion in model container [2020-11-28 03:09:04,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:03" (2/3) ... [2020-11-28 03:09:04,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf381d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:04, skipping insertion in model container [2020-11-28 03:09:04,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:04" (3/3) ... [2020-11-28 03:09:04,704 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-11-28 03:09:04,716 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:04,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:09:04,731 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:09:04,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:04,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:09:04,770 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:04,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:04,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:04,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:04,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:04,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:04,784 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-28 03:09:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:09:04,789 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:04,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:09:04,791 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:04,807 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 03:09:04,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:09:04,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548986566] [2020-11-28 03:09:04,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/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 [2020-11-28 03:09:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:04,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:04,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:05,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:09:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:05,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548986566] [2020-11-28 03:09:05,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:05,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 03:09:05,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836985177] [2020-11-28 03:09:05,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:09:05,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:09:05,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:09:05,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:09:05,156 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-11-28 03:09:05,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:05,193 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-28 03:09:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:05,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-28 03:09:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:05,202 INFO L225 Difference]: With dead ends: 12 [2020-11-28 03:09:05,203 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:09:05,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:09:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:09:05,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:09:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:09:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:09:05,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 03:09:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:05,235 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:05,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:09:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:09:05,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:09:05,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:09:05,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:09:05,462 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:09:05,462 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:09:05,462 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:09:05,462 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:09:05,463 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:09:05,463 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 03:09:05,463 INFO L274 CegarLoopResult]: For program point L4(lines 4 13) no Hoare annotation was computed. [2020-11-28 03:09:05,463 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:09:05,463 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:09:05,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:05 BoogieIcfgContainer [2020-11-28 03:09:05,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:05,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:05,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:05,472 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:05,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:04" (3/4) ... [2020-11-28 03:09:05,476 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:09:05,490 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:09:05,491 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:09:05,491 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:09:05,491 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:09:05,530 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7ee29e18-8b88-4d96-9190-3c6c54801ccf/bin/uautomizer/witness.graphml [2020-11-28 03:09:05,531 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:05,533 INFO L168 Benchmark]: Toolchain (without parser) took 1973.47 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 37.2 MB in the beginning and 39.1 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,534 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:05,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.73 ms. Allocated memory is still 58.7 MB. Free memory was 37.0 MB in the beginning and 27.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.07 ms. Allocated memory is still 58.7 MB. Free memory was 27.5 MB in the beginning and 26.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,543 INFO L168 Benchmark]: Boogie Preprocessor took 90.38 ms. Allocated memory is still 58.7 MB. Free memory was 26.1 MB in the beginning and 42.2 MB in the end (delta: -16.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,544 INFO L168 Benchmark]: RCFGBuilder took 745.56 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 32.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,545 INFO L168 Benchmark]: TraceAbstraction took 772.00 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 31.9 MB in the beginning and 41.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,546 INFO L168 Benchmark]: Witness Printer took 59.52 ms. Allocated memory is still 71.3 MB. Free memory was 41.2 MB in the beginning and 39.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:05,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 235.73 ms. Allocated memory is still 58.7 MB. Free memory was 37.0 MB in the beginning and 27.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.07 ms. Allocated memory is still 58.7 MB. Free memory was 27.5 MB in the beginning and 26.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.38 ms. Allocated memory is still 58.7 MB. Free memory was 26.1 MB in the beginning and 42.2 MB in the end (delta: -16.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 745.56 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 32.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 772.00 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 31.9 MB in the beginning and 41.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Witness Printer took 59.52 ms. Allocated memory is still 71.3 MB. Free memory was 41.2 MB in the beginning and 39.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...