./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.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_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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 716c28290dbb6f2a00a15a2121f6ea544c27813b .................................................................................................................................................................................................................................................................................................... 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_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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 716c28290dbb6f2a00a15a2121f6ea544c27813b ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:36:28,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:36:28,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:36:28,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:36:28,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:36:28,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:36:28,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:36:28,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:36:28,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:36:28,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:36:28,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:36:28,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:36:28,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:36:28,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:36:28,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:36:28,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:36:28,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:36:28,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:36:28,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:36:28,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:36:28,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:36:28,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:36:28,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:36:28,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:36:28,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:36:28,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:36:28,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:36:28,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:36:28,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:36:28,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:36:28,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:36:28,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:36:28,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:36:28,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:36:28,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:36:28,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:36:28,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:36:28,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:36:28,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:36:28,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:36:28,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:36:28,158 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:36:28,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:36:28,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:36:28,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:36:28,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:36:28,198 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:36:28,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:36:28,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:36:28,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:36:28,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:36:28,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:36:28,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:36:28,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:36:28,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:36:28,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:36:28,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:36:28,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:36:28,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:36:28,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:36:28,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:36:28,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:36:28,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:36:28,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:36:28,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:36:28,202 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_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-11-30 00:36:28,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:36:28,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:36:28,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:36:28,510 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:36:28,512 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:36:28,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-30 00:36:28,584 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/910b70e85/0589ec557ea14dd7acba1e90e91bc893/FLAG5c6249a4e [2020-11-30 00:36:29,002 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:36:29,003 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-30 00:36:29,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/910b70e85/0589ec557ea14dd7acba1e90e91bc893/FLAG5c6249a4e [2020-11-30 00:36:29,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/910b70e85/0589ec557ea14dd7acba1e90e91bc893 [2020-11-30 00:36:29,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:36:29,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:36:29,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:29,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:36:29,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:36:29,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@638d3b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29, skipping insertion in model container [2020-11-30 00:36:29,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:36:29,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:36:29,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:29,668 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:36:29,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:29,752 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:36:29,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29 WrapperNode [2020-11-30 00:36:29,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:29,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:29,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:36:29,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:36:29,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:29,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:36:29,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:36:29,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:36:29,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... [2020-11-30 00:36:29,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:36:29,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:36:29,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:36:29,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:36:29,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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 [2020-11-30 00:36:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:36:29,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:36:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:36:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:36:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:36:29,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:36:29,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:36:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:36:29,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:36:30,325 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:36:30,325 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-30 00:36:30,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:30 BoogieIcfgContainer [2020-11-30 00:36:30,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:36:30,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:36:30,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:36:30,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:36:30,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:36:29" (1/3) ... [2020-11-30 00:36:30,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3568a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:36:30, skipping insertion in model container [2020-11-30 00:36:30,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:29" (2/3) ... [2020-11-30 00:36:30,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3568a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:36:30, skipping insertion in model container [2020-11-30 00:36:30,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:30" (3/3) ... [2020-11-30 00:36:30,345 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-11-30 00:36:30,355 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:36:30,360 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:36:30,371 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:36:30,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:36:30,395 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:36:30,395 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:36:30,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:36:30,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:36:30,396 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:36:30,396 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:36:30,396 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:36:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 00:36:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:36:30,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:36:30,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:30,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:36:30,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:30,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-30 00:36:30,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:30,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903365313] [2020-11-30 00:36:30,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:30,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:30,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903365313] [2020-11-30 00:36:30,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:30,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:36:30,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163933938] [2020-11-30 00:36:30,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:36:30,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:36:30,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:36:30,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:36:30,588 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 00:36:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:30,606 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-30 00:36:30,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:36:30,607 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:36:30,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:36:30,617 INFO L225 Difference]: With dead ends: 65 [2020-11-30 00:36:30,617 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:36:30,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:36:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:36:30,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:36:30,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:36:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-30 00:36:30,653 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-30 00:36:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:36:30,654 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-30 00:36:30,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:36:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-30 00:36:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:36:30,655 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:36:30,655 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:30,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:36:30,655 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:36:30,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:30,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-30 00:36:30,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:36:30,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439588167] [2020-11-30 00:36:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:36:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:30,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:30,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:30,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:36:30,756 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:36:30,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:36:30,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:36:30 BoogieIcfgContainer [2020-11-30 00:36:30,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:36:30,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:36:30,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:36:30,787 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:36:30,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:30" (3/4) ... [2020-11-30 00:36:30,790 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:36:30,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:36:30,793 INFO L168 Benchmark]: Toolchain (without parser) took 1380.58 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 57.2 MB in the beginning and 64.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:30,793 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory was 60.5 MB in the beginning and 60.5 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:30,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.89 ms. Allocated memory is still 90.2 MB. Free memory was 57.0 MB in the beginning and 64.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:30,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.57 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 62.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:30,795 INFO L168 Benchmark]: Boogie Preprocessor took 32.91 ms. Allocated memory is still 90.2 MB. Free memory was 62.3 MB in the beginning and 60.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:30,796 INFO L168 Benchmark]: RCFGBuilder took 497.31 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 60.7 MB in the beginning and 85.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:30,797 INFO L168 Benchmark]: TraceAbstraction took 448.55 ms. Allocated memory is still 109.1 MB. Free memory was 87.0 MB in the beginning and 64.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:30,798 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 109.1 MB. Free memory was 64.5 MB in the beginning and 64.0 MB in the end (delta: 533.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:30,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 90.2 MB. Free memory was 60.5 MB in the beginning and 60.5 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.89 ms. Allocated memory is still 90.2 MB. Free memory was 57.0 MB in the beginning and 64.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.57 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 62.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.91 ms. Allocated memory is still 90.2 MB. Free memory was 62.3 MB in the beginning and 60.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 497.31 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 60.7 MB in the beginning and 85.6 MB in the end (delta: -24.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 448.55 ms. Allocated memory is still 109.1 MB. Free memory was 87.0 MB in the beginning and 64.5 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.04 ms. Allocated memory is still 109.1 MB. Free memory was 64.5 MB in the beginning and 64.0 MB in the end (delta: 533.6 kB). Peak memory consumption was 2.1 MB. 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 shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2020-11-30 00:36:33,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:36:33,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:36:33,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:36:33,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:36:33,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:36:33,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:36:33,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:36:33,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:36:33,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:36:33,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:36:33,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:36:33,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:36:33,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:36:33,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:36:33,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:36:33,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:36:33,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:36:33,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:36:33,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:36:33,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:36:33,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:36:33,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:36:33,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:36:33,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:36:33,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:36:33,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:36:33,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:36:33,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:36:33,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:36:33,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:36:33,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:36:33,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:36:33,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:36:33,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:36:33,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:36:33,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:36:33,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:36:33,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:36:33,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:36:33,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:36:33,341 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:36:33,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:36:33,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:36:33,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:36:33,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:36:33,370 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:36:33,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:36:33,370 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:36:33,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:36:33,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:36:33,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:36:33,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:36:33,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:36:33,372 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:36:33,372 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:36:33,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:36:33,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:36:33,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:36:33,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:36:33,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:36:33,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:36:33,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:36:33,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:36:33,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:36:33,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:36:33,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:36:33,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:36:33,375 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:36:33,375 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:36:33,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:36:33,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:36:33,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:36:33,376 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_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-11-30 00:36:33,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:36:33,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:36:33,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:36:33,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:36:33,787 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:36:33,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-30 00:36:33,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/1649bdf38/44ba7465788f4a9790d4ac283472d244/FLAGe185f942b [2020-11-30 00:36:34,460 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:36:34,461 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-30 00:36:34,470 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/1649bdf38/44ba7465788f4a9790d4ac283472d244/FLAGe185f942b [2020-11-30 00:36:34,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/data/1649bdf38/44ba7465788f4a9790d4ac283472d244 [2020-11-30 00:36:34,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:36:34,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:36:34,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:34,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:36:34,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:36:34,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:34" (1/1) ... [2020-11-30 00:36:34,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8f6f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:34, skipping insertion in model container [2020-11-30 00:36:34,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:36:34" (1/1) ... [2020-11-30 00:36:34,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:36:34,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:36:35,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:35,067 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:36:35,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:36:35,142 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:36:35,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35 WrapperNode [2020-11-30 00:36:35,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:36:35,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:35,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:36:35,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:36:35,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:36:35,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:36:35,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:36:35,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:36:35,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... [2020-11-30 00:36:35,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:36:35,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:36:35,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:36:35,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:36:35,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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 [2020-11-30 00:36:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:36:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:36:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:36:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:36:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:36:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:36:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:36:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:36:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:36:36,842 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:36:36,842 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-30 00:36:36,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:36 BoogieIcfgContainer [2020-11-30 00:36:36,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:36:36,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:36:36,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:36:36,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:36:36,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:36:34" (1/3) ... [2020-11-30 00:36:36,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c36ddeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:36:36, skipping insertion in model container [2020-11-30 00:36:36,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:36:35" (2/3) ... [2020-11-30 00:36:36,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c36ddeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:36:36, skipping insertion in model container [2020-11-30 00:36:36,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:36" (3/3) ... [2020-11-30 00:36:36,852 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-11-30 00:36:36,866 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:36:36,871 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:36:36,881 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:36:36,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:36:36,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:36:36,902 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:36:36,902 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:36:36,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:36:36,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:36:36,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:36:36,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:36:36,912 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 00:36:36,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:36:36,927 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:36:36,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:36,928 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:36:36,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:36,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-30 00:36:36,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:36:36,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737433680] [2020-11-30 00:36:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/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 [2020-11-30 00:36:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:37,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:36:37,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:37,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:36:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:37,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737433680] [2020-11-30 00:36:37,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:37,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:36:37,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971832136] [2020-11-30 00:36:37,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:36:37,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:36:37,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:36:37,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:36:37,128 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 00:36:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:37,146 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-30 00:36:37,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:36:37,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:36:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:36:37,157 INFO L225 Difference]: With dead ends: 65 [2020-11-30 00:36:37,157 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:36:37,160 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:36:37,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:36:37,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:36:37,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:36:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-30 00:36:37,193 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-30 00:36:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:36:37,194 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-30 00:36:37,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:36:37,194 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-30 00:36:37,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:36:37,195 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:36:37,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:37,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:36:37,420 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:36:37,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:37,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-30 00:36:37,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:36:37,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630686461] [2020-11-30 00:36:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/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 [2020-11-30 00:36:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:37,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:36:37,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:37,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:36:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:37,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630686461] [2020-11-30 00:36:37,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:37,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:36:37,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838016461] [2020-11-30 00:36:37,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:36:37,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:36:37,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:36:37,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:36:37,750 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-11-30 00:36:38,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:38,176 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-11-30 00:36:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:36:38,178 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 00:36:38,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:36:38,179 INFO L225 Difference]: With dead ends: 44 [2020-11-30 00:36:38,179 INFO L226 Difference]: Without dead ends: 24 [2020-11-30 00:36:38,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-30 00:36:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-30 00:36:38,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2020-11-30 00:36:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 00:36:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-30 00:36:38,189 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2020-11-30 00:36:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:36:38,189 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-30 00:36:38,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:36:38,191 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-30 00:36:38,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:36:38,194 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:36:38,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:38,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:36:38,413 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:36:38,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:38,414 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-11-30 00:36:38,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:36:38,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829357698] [2020-11-30 00:36:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/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 [2020-11-30 00:36:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:36:38,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:36:38,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:36:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:38,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:36:39,559 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-30 00:36:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:36:39,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829357698] [2020-11-30 00:36:39,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:36:39,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 00:36:39,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898654637] [2020-11-30 00:36:39,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:36:39,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:36:39,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:36:39,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:36:39,839 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-11-30 00:36:40,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:36:40,326 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-30 00:36:40,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:36:40,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 00:36:40,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:36:40,336 INFO L225 Difference]: With dead ends: 24 [2020-11-30 00:36:40,336 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 00:36:40,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:36:40,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 00:36:40,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-30 00:36:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 00:36:40,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-30 00:36:40,340 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2020-11-30 00:36:40,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:36:40,341 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-30 00:36:40,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:36:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-30 00:36:40,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:36:40,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:36:40,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:36:40,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:36:40,542 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:36:40,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:36:40,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2020-11-30 00:36:40,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:36:40,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [625567393] [2020-11-30 00:36:40,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 00:36:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:40,792 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:36:40,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:36:40,983 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 00:36:40,983 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:36:41,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 00:36:41,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:36:41 BoogieIcfgContainer [2020-11-30 00:36:41,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:36:41,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:36:41,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:36:41,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:36:41,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:36:36" (3/4) ... [2020-11-30 00:36:41,220 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:36:41,277 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8e5aa5bf-5863-4b58-86ed-fdb160df4041/bin/uautomizer/witness.graphml [2020-11-30 00:36:41,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:36:41,279 INFO L168 Benchmark]: Toolchain (without parser) took 6491.99 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 43.7 MB in the beginning and 33.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,279 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:36:41,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.75 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 32.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.92 ms. Allocated memory is still 62.9 MB. Free memory was 32.2 MB in the beginning and 30.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,281 INFO L168 Benchmark]: Boogie Preprocessor took 46.67 ms. Allocated memory is still 62.9 MB. Free memory was 30.5 MB in the beginning and 46.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,282 INFO L168 Benchmark]: RCFGBuilder took 1575.08 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 26.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,283 INFO L168 Benchmark]: TraceAbstraction took 4371.89 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 25.6 MB in the beginning and 37.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,283 INFO L168 Benchmark]: Witness Printer took 59.37 ms. Allocated memory is still 77.6 MB. Free memory was 37.0 MB in the beginning and 33.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:36:41,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 62.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.75 ms. Allocated memory is still 62.9 MB. Free memory was 43.4 MB in the beginning and 32.2 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.92 ms. Allocated memory is still 62.9 MB. Free memory was 32.2 MB in the beginning and 30.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.67 ms. Allocated memory is still 62.9 MB. Free memory was 30.5 MB in the beginning and 46.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1575.08 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 26.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4371.89 ms. Allocated memory was 62.9 MB in the beginning and 77.6 MB in the end (delta: 14.7 MB). Free memory was 25.6 MB in the beginning and 37.0 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * Witness Printer took 59.37 ms. Allocated memory is still 77.6 MB. Free memory was 37.0 MB in the beginning and 33.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND TRUE j0 < 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L33] COND TRUE huge_ceil + x > 0.0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L34] COND FALSE !(i0 < 0) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L37] COND TRUE (i0 | i1) != 0 [L38] i0 = 0x3ff00000 [L39] i1 = 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L77] ieee_double_shape_type iw_u; [L78] iw_u.parts.msw = (i0) [L79] iw_u.parts.lsw = (i1) [L80] EXPR iw_u.value [L80] (x) = iw_u.value [L82] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 107 SDslu, 27 SDs, 0 SdLazy, 28 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 3227 SizeOfPredicates, 11 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 incorrect! Received shutdown request...