./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b7d4ca5abe407f92e494aeba8bd319058a84bcf ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b7d4ca5abe407f92e494aeba8bd319058a84bcf ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:50:48,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:50:48,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:50:48,210 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:50:48,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:50:48,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:50:48,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:50:48,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:50:48,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:50:48,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:50:48,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:50:48,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:50:48,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:50:48,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:50:48,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:50:48,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:50:48,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:50:48,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:50:48,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:50:48,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:50:48,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:50:48,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:50:48,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:50:48,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:50:48,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:50:48,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:50:48,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:50:48,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:50:48,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:50:48,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:50:48,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:50:48,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:50:48,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:50:48,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:50:48,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:50:48,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:50:48,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:50:48,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:50:48,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:50:48,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:50:48,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:50:48,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:50:48,295 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:50:48,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:50:48,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:50:48,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:50:48,297 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:50:48,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:50:48,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:50:48,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:50:48,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:50:48,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:50:48,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:50:48,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:50:48,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:50:48,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:50:48,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:50:48,301 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:50:48,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:50:48,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:50:48,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:50:48,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:50:48,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:50:48,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:50:48,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:50:48,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:50:48,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:50:48,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:50:48,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:50:48,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:50:48,304 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7d4ca5abe407f92e494aeba8bd319058a84bcf [2019-11-15 23:50:48,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:50:48,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:50:48,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:50:48,360 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:50:48,361 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:50:48,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2019-11-15 23:50:48,406 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/e30feb7ce/7639ff3c1a16460791e93551e19bd000/FLAG8d631cdc0 [2019-11-15 23:50:48,860 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:50:48,863 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2019-11-15 23:50:48,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/e30feb7ce/7639ff3c1a16460791e93551e19bd000/FLAG8d631cdc0 [2019-11-15 23:50:49,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/e30feb7ce/7639ff3c1a16460791e93551e19bd000 [2019-11-15 23:50:49,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:50:49,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:50:49,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:50:49,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:50:49,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:50:49,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4544c513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49, skipping insertion in model container [2019-11-15 23:50:49,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,402 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:50:49,429 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:50:49,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:50:49,808 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:50:49,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:50:49,901 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:50:49,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49 WrapperNode [2019-11-15 23:50:49,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:50:49,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:50:49,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:50:49,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:50:49,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:50:49,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:50:49,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:50:49,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:50:49,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:49,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:50,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:50,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:50,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... [2019-11-15 23:50:50,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:50:50,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:50:50,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:50:50,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:50:50,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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 [2019-11-15 23:50:50,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:50:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:50:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:50:50,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:50:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:50:50,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:50:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:50:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-15 23:50:50,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:50:50,872 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:50:50,873 INFO L284 CfgBuilder]: Removed 56 assume(true) statements. [2019-11-15 23:50:50,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:50:50 BoogieIcfgContainer [2019-11-15 23:50:50,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:50:50,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:50:50,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:50:50,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:50:50,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:50:49" (1/3) ... [2019-11-15 23:50:50,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13779e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:50:50, skipping insertion in model container [2019-11-15 23:50:50,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:49" (2/3) ... [2019-11-15 23:50:50,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13779e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:50:50, skipping insertion in model container [2019-11-15 23:50:50,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:50:50" (3/3) ... [2019-11-15 23:50:50,881 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2019-11-15 23:50:50,891 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:50:50,904 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:50:50,915 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:50:50,949 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:50:50,949 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:50:50,949 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:50:50,949 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:50:50,950 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:50:50,950 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:50:50,950 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:50:50,950 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:50:50,965 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-11-15 23:50:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 23:50:50,970 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:50:50,971 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:50:50,972 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:50:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:50:50,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2019-11-15 23:50:50,982 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:50:50,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669962293] [2019-11-15 23:50:50,982 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:50:50,982 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:50:50,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:50:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:50:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:50:51,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669962293] [2019-11-15 23:50:51,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:50:51,145 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:50:51,145 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522006851] [2019-11-15 23:50:51,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:50:51,149 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:50:51,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:50:51,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:50:51,160 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-11-15 23:50:51,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:50:51,188 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2019-11-15 23:50:51,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:50:51,190 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-15 23:50:51,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:50:51,201 INFO L225 Difference]: With dead ends: 256 [2019-11-15 23:50:51,201 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 23:50:51,205 INFO L600 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 [2019-11-15 23:50:51,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 23:50:51,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 23:50:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 23:50:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2019-11-15 23:50:51,246 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2019-11-15 23:50:51,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:50:51,246 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2019-11-15 23:50:51,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:50:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2019-11-15 23:50:51,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:50:51,248 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:50:51,248 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:50:51,248 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:50:51,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:50:51,248 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2019-11-15 23:50:51,249 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:50:51,249 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848380664] [2019-11-15 23:50:51,249 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:50:51,249 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:50:51,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:50:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:50:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:50:51,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848380664] [2019-11-15 23:50:51,376 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:50:51,376 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:50:51,376 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540729974] [2019-11-15 23:50:51,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:50:51,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:50:51,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:50:51,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:50:51,378 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand 3 states. [2019-11-15 23:50:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:50:51,404 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2019-11-15 23:50:51,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:50:51,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 23:50:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:50:51,406 INFO L225 Difference]: With dead ends: 239 [2019-11-15 23:50:51,407 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 23:50:51,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:50:51,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 23:50:51,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 23:50:51,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 23:50:51,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2019-11-15 23:50:51,420 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2019-11-15 23:50:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:50:51,431 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2019-11-15 23:50:51,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:50:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2019-11-15 23:50:51,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 23:50:51,432 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:50:51,432 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:50:51,432 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:50:51,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:50:51,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2019-11-15 23:50:51,433 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:50:51,433 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397867170] [2019-11-15 23:50:51,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:50:51,433 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:50:51,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:50:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:50:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:50:52,104 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:50:52,107 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:50:52,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:50:52 BoogieIcfgContainer [2019-11-15 23:50:52,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:50:52,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:50:52,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:50:52,191 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:50:52,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:50:50" (3/4) ... [2019-11-15 23:50:52,194 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:50:52,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:50:52,196 INFO L168 Benchmark]: Toolchain (without parser) took 2809.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 946.1 MB in the beginning and 962.8 MB in the end (delta: -16.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,196 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:50:52,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -205.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,198 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,198 INFO L168 Benchmark]: Boogie Preprocessor took 64.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,199 INFO L168 Benchmark]: RCFGBuilder took 841.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,199 INFO L168 Benchmark]: TraceAbstraction took 1314.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.2 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,200 INFO L168 Benchmark]: Witness Printer took 3.82 ms. Allocated memory is still 1.2 GB. Free memory was 968.2 MB in the beginning and 962.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:50:52,203 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 516.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -205.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 841.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1314.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.2 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.82 ms. Allocated memory is still 1.2 GB. Free memory was 968.2 MB in the beginning and 962.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 298]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryDOUBLEComparisonOperation at line 297. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L289] double x = 1.0 / 0.0; [L290] double y = __VERIFIER_nondet_double(); [L246] __int32_t hx, lx; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L248] ieee_double_shape_type ew_u; [L249] ew_u.value = (x) [L250] EXPR ew_u.parts.msw [L250] (hx) = ew_u.parts.msw [L251] EXPR ew_u.parts.lsw [L251] (lx) = ew_u.parts.lsw [L253] hx &= 0x7fffffff [L254] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L255] hx = 0x7ff00000 - hx [L256] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L292] EXPR isinf_double(x) && isfinite_double(y) [L260] __int32_t hx; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] ieee_double_shape_type gh_u; [L263] gh_u.value = (x) [L264] EXPR gh_u.parts.msw [L264] (hx) = gh_u.parts.msw [L266] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L292] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L292] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L294] double res = __ieee754_atan2(y, x); [L297] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L297] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L298] __VERIFIER_error() VAL [aT_atan={1:0}, atanhi_atan={-1:0}, atanlo_atan={-3:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 0 SDslu, 169 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:50:54,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:50:54,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:50:54,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:50:54,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:50:54,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:50:54,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:50:54,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:50:54,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:50:54,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:50:54,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:50:54,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:50:54,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:50:54,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:50:54,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:50:54,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:50:54,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:50:54,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:50:54,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:50:54,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:50:54,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:50:54,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:50:54,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:50:54,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:50:54,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:50:54,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:50:54,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:50:54,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:50:54,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:50:54,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:50:54,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:50:54,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:50:54,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:50:54,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:50:54,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:50:54,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:50:54,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:50:54,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:50:54,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:50:54,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:50:54,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:50:54,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:50:54,518 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:50:54,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:50:54,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:50:54,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:50:54,520 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:50:54,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:50:54,520 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:50:54,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:50:54,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:50:54,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:50:54,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:50:54,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:50:54,522 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:50:54,522 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:50:54,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:50:54,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:50:54,522 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:50:54,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:50:54,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:50:54,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:50:54,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:50:54,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:50:54,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:50:54,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:50:54,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:50:54,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:50:54,525 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:50:54,525 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:50:54,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:50:54,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:50:54,526 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7d4ca5abe407f92e494aeba8bd319058a84bcf [2019-11-15 23:50:54,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:50:54,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:50:54,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:50:54,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:50:54,571 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:50:54,572 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2019-11-15 23:50:54,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/2858f6a6c/5524ece75f4844d4b97928e5d769612a/FLAG34788228c [2019-11-15 23:50:55,099 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:50:55,100 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2019-11-15 23:50:55,112 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/2858f6a6c/5524ece75f4844d4b97928e5d769612a/FLAG34788228c [2019-11-15 23:50:55,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/bin/uautomizer/data/2858f6a6c/5524ece75f4844d4b97928e5d769612a [2019-11-15 23:50:55,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:50:55,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:50:55,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:50:55,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:50:55,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:50:55,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55db828f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55, skipping insertion in model container [2019-11-15 23:50:55,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,150 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:50:55,194 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:50:55,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:50:55,543 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:50:55,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:50:55,642 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:50:55,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55 WrapperNode [2019-11-15 23:50:55,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:50:55,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:50:55,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:50:55,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:50:55,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:50:55,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:50:55,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:50:55,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:50:55,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... [2019-11-15 23:50:55,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:50:55,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:50:55,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:50:55,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:50:55,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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 [2019-11-15 23:50:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 23:50:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 23:50:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:50:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-15 23:50:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:50:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:50:55,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:50:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:50:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:51:34,630 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:51:34,630 INFO L284 CfgBuilder]: Removed 56 assume(true) statements. [2019-11-15 23:51:34,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:51:34 BoogieIcfgContainer [2019-11-15 23:51:34,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:51:34,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:51:34,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:51:34,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:51:34,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:50:55" (1/3) ... [2019-11-15 23:51:34,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bb1290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:51:34, skipping insertion in model container [2019-11-15 23:51:34,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:50:55" (2/3) ... [2019-11-15 23:51:34,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72bb1290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:51:34, skipping insertion in model container [2019-11-15 23:51:34,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:51:34" (3/3) ... [2019-11-15 23:51:34,640 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2019-11-15 23:51:34,650 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:51:34,658 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:51:34,668 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:51:34,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:51:34,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:51:34,693 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:51:34,693 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:51:34,694 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:51:34,694 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:51:34,694 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:51:34,694 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:51:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2019-11-15 23:51:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-15 23:51:34,719 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:51:34,720 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:51:34,722 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:51:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:51:34,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2019-11-15 23:51:34,740 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:51:34,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706830014] [2019-11-15 23:51:34,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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 [2019-11-15 23:51:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:51:35,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:51:35,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:51:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:51:35,143 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:51:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:51:35,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706830014] [2019-11-15 23:51:35,150 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:51:35,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:51:35,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725829848] [2019-11-15 23:51:35,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:51:35,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:51:35,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:51:35,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:51:35,167 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 2 states. [2019-11-15 23:51:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:51:35,201 INFO L93 Difference]: Finished difference Result 256 states and 428 transitions. [2019-11-15 23:51:35,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:51:35,203 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-15 23:51:35,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:51:35,219 INFO L225 Difference]: With dead ends: 256 [2019-11-15 23:51:35,220 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 23:51:35,223 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:51:35,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 23:51:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 23:51:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 23:51:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 175 transitions. [2019-11-15 23:51:35,292 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 175 transitions. Word has length 16 [2019-11-15 23:51:35,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:51:35,293 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 175 transitions. [2019-11-15 23:51:35,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:51:35,293 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 175 transitions. [2019-11-15 23:51:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:51:35,296 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:51:35,296 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:51:35,497 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:51:35,498 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:51:35,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:51:35,498 INFO L82 PathProgramCache]: Analyzing trace with hash 553662369, now seen corresponding path program 1 times [2019-11-15 23:51:35,499 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:51:35,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321864230] [2019-11-15 23:51:35,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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 [2019-11-15 23:51:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:51:35,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 23:51:35,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:51:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:51:35,893 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:51:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:51:35,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321864230] [2019-11-15 23:51:35,897 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:51:35,897 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-15 23:51:35,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872716745] [2019-11-15 23:51:35,898 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:51:35,899 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:51:35,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:51:35,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:51:35,899 INFO L87 Difference]: Start difference. First operand 125 states and 175 transitions. Second operand 3 states. [2019-11-15 23:51:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:51:35,942 INFO L93 Difference]: Finished difference Result 239 states and 338 transitions. [2019-11-15 23:51:35,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:51:35,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 23:51:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:51:35,945 INFO L225 Difference]: With dead ends: 239 [2019-11-15 23:51:35,945 INFO L226 Difference]: Without dead ends: 125 [2019-11-15 23:51:35,947 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:51:35,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-15 23:51:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2019-11-15 23:51:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 23:51:35,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 174 transitions. [2019-11-15 23:51:35,957 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 174 transitions. Word has length 19 [2019-11-15 23:51:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:51:35,958 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 174 transitions. [2019-11-15 23:51:35,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:51:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 174 transitions. [2019-11-15 23:51:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 23:51:35,959 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:51:35,959 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:51:36,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:51:36,182 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:51:36,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:51:36,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1139099466, now seen corresponding path program 1 times [2019-11-15 23:51:36,183 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:51:36,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360221165] [2019-11-15 23:51:36,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f69b92a-2176-4e57-9f73-8c37742b2159/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 [2019-11-15 23:51:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:51:36,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-15 23:51:36,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:51:37,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:51:37,481 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:51:37,481 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive$TermWalker.walk(NonRecursive.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:195) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder.(ArrayOccurrenceAnalysis.java:181) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.(ArrayOccurrenceAnalysis.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis.downgradeDimensionsIfNecessary(ArrayOccurrenceAnalysis.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:132) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 23:51:37,486 INFO L168 Benchmark]: Toolchain (without parser) took 42352.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 945.6 MB in the beginning and 877.6 MB in the end (delta: 68.0 MB). Peak memory consumption was 166.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:51:37,487 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:51:37,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:51:37,488 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:51:37,488 INFO L168 Benchmark]: Boogie Preprocessor took 84.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:51:37,489 INFO L168 Benchmark]: RCFGBuilder took 38808.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:51:37,489 INFO L168 Benchmark]: TraceAbstraction took 2851.50 ms. Allocated memory is still 1.1 GB. Free memory was 989.7 MB in the beginning and 877.6 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:51:37,499 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 506.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -131.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 38808.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.7 MB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2851.50 ms. Allocated memory is still 1.1 GB. Free memory was 989.7 MB in the beginning and 877.6 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayOccurrenceAnalysis$ArrOccFinder$MyWalker.walk(ArrayOccurrenceAnalysis.java:277) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...